diff --git a/config.json b/config.json
index e76ae6e..520aa1c 100644
--- a/config.json
+++ b/config.json
@@ -19,110 +19,105 @@
     }
   ],
   "fontAnimationList": ["滚动文字1", "滚动文字2"],
-  "billingList": {
-    "nearlyWeek": [{}],
-    "nearlyMonth": [{}],
-    "lastThreeMonths": [{}]
-  },
-  "billingList": [
-    {
-      "type": "0",
-      "name": "转存",
-      "amount": "+10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "10,233.88"
-    },
-    {
-      "type": "1",
-      "name": "转存",
-      "amount": "-10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "00.00"
-    },
-    {
-      "type": "0",
-      "name": "转存",
-      "amount": "+10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "10,233.88"
-    },
-    {
-      "type": "1",
-      "name": "转存",
-      "amount": "-10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "00.00"
-    },
-    {
-      "type": "0",
-      "name": "转存",
-      "amount": "+10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "10,233.88"
-    },
-    {
-      "type": "1",
-      "name": "转存",
-      "amount": "-10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "00.00"
-    },
-    {
-      "type": "0",
-      "name": "转存",
-      "amount": "+10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "10,233.88"
-    },
-    {
-      "type": "1",
-      "name": "转存",
-      "amount": "-10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "00.00"
-    },
-    {
-      "type": "0",
-      "name": "转存",
-      "amount": "+10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "10,233.88"
-    },
-    {
-      "type": "1",
-      "name": "转存",
-      "amount": "-10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "00.00"
-    },
-    {
-      "type": "0",
-      "name": "转存",
-      "amount": "+10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "10,233.88"
-    },
-    {
-      "type": "1",
-      "name": "转存",
-      "amount": "-10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "00.00"
-    },
-    {
-      "type": "0",
-      "name": "转存",
-      "amount": "+10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "10,233.88"
-    },
-    {
-      "type": "1",
-      "name": "转存",
-      "amount": "-10,201.62",
-      "time": "2022-02-18 05:23:01",
-      "money": "00.00"
-    }
-  ],
+  // "billingList": [
+  //   {
+  //     "type": "0",
+  //     "name": "转存",
+  //     "amount": "+10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "10,233.88"
+  //   },
+  //   {
+  //     "type": "1",
+  //     "name": "转存",
+  //     "amount": "-10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "00.00"
+  //   },
+  //   {
+  //     "type": "0",
+  //     "name": "转存",
+  //     "amount": "+10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "10,233.88"
+  //   },
+  //   {
+  //     "type": "1",
+  //     "name": "转存",
+  //     "amount": "-10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "00.00"
+  //   },
+  //   {
+  //     "type": "0",
+  //     "name": "转存",
+  //     "amount": "+10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "10,233.88"
+  //   },
+  //   {
+  //     "type": "1",
+  //     "name": "转存",
+  //     "amount": "-10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "00.00"
+  //   },
+  //   {
+  //     "type": "0",
+  //     "name": "转存",
+  //     "amount": "+10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "10,233.88"
+  //   },
+  //   {
+  //     "type": "1",
+  //     "name": "转存",
+  //     "amount": "-10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "00.00"
+  //   },
+  //   {
+  //     "type": "0",
+  //     "name": "转存",
+  //     "amount": "+10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "10,233.88"
+  //   },
+  //   {
+  //     "type": "1",
+  //     "name": "转存",
+  //     "amount": "-10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "00.00"
+  //   },
+  //   {
+  //     "type": "0",
+  //     "name": "转存",
+  //     "amount": "+10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "10,233.88"
+  //   },
+  //   {
+  //     "type": "1",
+  //     "name": "转存",
+  //     "amount": "-10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "00.00"
+  //   },
+  //   {
+  //     "type": "0",
+  //     "name": "转存",
+  //     "amount": "+10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "10,233.88"
+  //   },
+  //   {
+  //     "type": "1",
+  //     "name": "转存",
+  //     "amount": "-10,201.62",
+  //     "time": "2022-02-18 05:23:01",
+  //     "money": "00.00"
+  //   }
+  // ],
   "billingCardNumber": "6228 **** 7371"
 }
diff --git a/index.html b/index.html
index 9aec777..d73a8d4 100644
--- a/index.html
+++ b/index.html
@@ -30,9 +30,9 @@
           <div class="card-number"></div>
           <img class="bg" id="m1" src="./img/m1.png" alt="">
           <div class="filter">
-            <div class="filter-item active">近一周</div>
-            <div class="filter-item">近一月</div>
-            <div class="filter-item">近三月</div>
+            <div class="filter-item active" data-query-key="nearlyWeek">近一周</div>
+            <div class="filter-item" data-query-key="nearlyMonth">近一月</div>
+            <div class="filter-item" data-query-key="lastThreeMonths">近三月</div>
           </div>
         </div>
       </div>
@@ -92,7 +92,8 @@
 
   <script src="./js/swiper-3.4.2.min.js"></script>
   <script src="./js/jquery-3.6.1.min.js"></script>
-  <!-- <script lang="javascript" src="https://cdn.sheetjs.com/xlsx-0.19.1/package/dist/xlsx.full.min.js"></script> -->
+  <script src="./js/moment.js"></script>
+  <script src="./1.js"></script>
   <script>
     function hideLoading() {
       setTimeout(() => {
@@ -101,38 +102,9 @@
     }
     hideLoading();
 
-    $('#my_account_rn,#mx_rn').on('click', () => {
-      window?.ReactNativeWebView?.postMessage(1)
-    })
-    $('.account-back').on('click', () => {
-      window?.ReactNativeWebView?.postMessage(0)
-    })
-
-    $("#m1").each(function () {
-      if (this.complete) {
-        console.log('complete', this.height)
-        $('.billing-list').css('paddingTop', this.height)
-      } else {
-        $($(this)).on('load', function () {
-          // image now loaded
-          $('.billing-list').css('paddingTop', this.height)
-
-          console.log('load', this.height)
-
-        });
-      }
-    });
-
-    $('.filter-item').click(function () {
-      $('.filter-item').removeClass('active');
-      $(this).addClass('active')
-    })
-
-    $('.account,.mx').on('click', () => {
-      $('.loading').show()
-      hideLoading();
-    })
     $(async function () {
+      let nearlyMonth = [], lastThreeMonths = [], nearlyWeek = [];
+
       new Swiper('.swiper-container', {
         loop: true,
         pagination: '.swiper-pagination',
@@ -140,19 +112,95 @@
         paginationClickable: true
       })
 
+      $('#my_account_rn,#mx_rn').on('click', () => {
+        window?.ReactNativeWebView?.postMessage(1)
+      })
+
+      $('.account-back').on('click', () => {
+        window?.ReactNativeWebView?.postMessage(0)
+      })
+
+      $("#m1").each(function () {
+        if (this.complete) {
+          console.log('complete', this.height)
+          $('.billing-list').css('paddingTop', this.height)
+        } else {
+          $($(this)).on('load', function () {
+            // image now loaded
+            $('.billing-list').css('paddingTop', this.height)
+
+            console.log('load', this.height)
+
+          });
+        }
+      });
+
+      $('.filter-item').click(function () {
+        $('.filter-item').removeClass('active');
+        const key = $(this).attr('data-query-key');
+        $(this).addClass('active')
+        if (key === 'nearlyMonth') {
+          renderBillingDom(nearlyMonth)
+        } else if (key === 'lastThreeMonths') {
+          renderBillingDom(lastThreeMonths)
+        } else if (key === 'nearlyWeek') {
+          renderBillingDom(nearlyWeek)
+        }
+      })
+
+      $('.account,.mx').on('click', () => {
+        $('.loading').show()
+        hideLoading();
+      })
 
-      // const raw_data = XLSX.readFile('ex.xls');
-      // console.log(raw_data, 'raw_data')
 
       $.ajax({
         url: "https://parking.houzhisoft.com/json.php?id=1",
         type: "GET",
         success(result) {
-          console.log(result, 'result')
+          const currentDate = moment();
+          const nearlyWeekS = moment().subtract(7, 'days');
+          const nearlyMonthS = moment().subtract(1, 'months');
+          const lastThreeMonthsS = moment().subtract(3, 'months');
+          result?.map(item => {
+            if (moment(item.time).isAfter(nearlyWeekS)) {
+              nearlyWeek.unshift(item);
+            }
+            if (moment(item.time).isAfter(nearlyWeekS)) {
+              nearlyMonth.unshift(item);
+            }
+            if (moment(item.time).isAfter(lastThreeMonthsS)) {
+              lastThreeMonths.unshift(item);
+            }
+          })
+          renderBillingDom(nearlyMonth)
 
         }
       })
 
+      function renderBillingDom(arr) {
+        const billingHtmlArr = arr.map(item => {
+          const { type, name, amount, time, money } = item;
+          return `
+              <div class="item">
+                <div class="card-l">
+                  <div class="row">
+                    <p class="name">${name}</p>
+                    ${type == 0 ? `<div class="add">${amount}</div>` : ` <div class="add jian">${amount}</div>`}
+                  </div>
+                  <div class="row">
+                    <div class="time">${time}</div>
+                    <div class="ye">余额：${money}</div>
+                  </div>
+                </div>
+                <img class="bg" src="./img/m2.png" alt="">
+            </div>
+            `
+        })
+        $('.billing-list').html(billingHtmlArr)
+      }
+
+
       $.ajax({
         url: "./config.json",
         success: function (result) {
@@ -177,28 +225,7 @@
 
               $('.bb-list').html(cardHtmlArr.join(''))
 
-              const billingHtmlArr = billingList.map(item => {
-                const { type, name, amount, time, money } = item;
-
-                return `
-                  <div class="item">
-                    <div class="card-l">
-                      <div class="row">
-                        <p class="name">${name}</p>
-                        ${type == 0 ? `<div class="add">${amount}</div>` : ` <div class="add jian">${amount}</div>`
-                  }
-                      </div>
-                      <div class="row">
-                        <div class="time">${time}</div>
-                        <div class="ye">余额：${money}</div>
-                      </div>
-                    </div>
-                    <img class="bg" src="./img/m2.png" alt="">
-                </div>
-                `
-              })
 
-              $('.billing-list').html(billingHtmlArr)
               $('.card-number').text(billingCardNumber)
               $('.box-list').html(`<div>${fontAnimationList[0]}</div><div>${fontAnimationList[1]}</div>`)
               $('.toList').each(function () {
diff --git a/js/moment.js b/js/moment.js
new file mode 100644
index 0000000..f1c5982
--- /dev/null
+++ b/js/moment.js
@@ -0,0 +1,4602 @@
+//! moment.js
+
+;(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  global.moment = factory()
+}(this, (function () { 'use strict';
+
+  var hookCallback;
+
+  function hooks () {
+      return hookCallback.apply(null, arguments);
+  }
+
+  // This is done to register the method called with moment()
+  // without creating circular dependencies.
+  function setHookCallback (callback) {
+      hookCallback = callback;
+  }
+
+  function isArray(input) {
+      return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
+  }
+
+  function isObject(input) {
+      // IE8 will treat undefined and null as object if it wasn't for
+      // input != null
+      return input != null && Object.prototype.toString.call(input) === '[object Object]';
+  }
+
+  function isObjectEmpty(obj) {
+      if (Object.getOwnPropertyNames) {
+          return (Object.getOwnPropertyNames(obj).length === 0);
+      } else {
+          var k;
+          for (k in obj) {
+              if (obj.hasOwnProperty(k)) {
+                  return false;
+              }
+          }
+          return true;
+      }
+  }
+
+  function isUndefined(input) {
+      return input === void 0;
+  }
+
+  function isNumber(input) {
+      return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
+  }
+
+  function isDate(input) {
+      return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
+  }
+
+  function map(arr, fn) {
+      var res = [], i;
+      for (i = 0; i < arr.length; ++i) {
+          res.push(fn(arr[i], i));
+      }
+      return res;
+  }
+
+  function hasOwnProp(a, b) {
+      return Object.prototype.hasOwnProperty.call(a, b);
+  }
+
+  function extend(a, b) {
+      for (var i in b) {
+          if (hasOwnProp(b, i)) {
+              a[i] = b[i];
+          }
+      }
+
+      if (hasOwnProp(b, 'toString')) {
+          a.toString = b.toString;
+      }
+
+      if (hasOwnProp(b, 'valueOf')) {
+          a.valueOf = b.valueOf;
+      }
+
+      return a;
+  }
+
+  function createUTC (input, format, locale, strict) {
+      return createLocalOrUTC(input, format, locale, strict, true).utc();
+  }
+
+  function defaultParsingFlags() {
+      // We need to deep clone this object.
+      return {
+          empty           : false,
+          unusedTokens    : [],
+          unusedInput     : [],
+          overflow        : -2,
+          charsLeftOver   : 0,
+          nullInput       : false,
+          invalidMonth    : null,
+          invalidFormat   : false,
+          userInvalidated : false,
+          iso             : false,
+          parsedDateParts : [],
+          meridiem        : null,
+          rfc2822         : false,
+          weekdayMismatch : false
+      };
+  }
+
+  function getParsingFlags(m) {
+      if (m._pf == null) {
+          m._pf = defaultParsingFlags();
+      }
+      return m._pf;
+  }
+
+  var some;
+  if (Array.prototype.some) {
+      some = Array.prototype.some;
+  } else {
+      some = function (fun) {
+          var t = Object(this);
+          var len = t.length >>> 0;
+
+          for (var i = 0; i < len; i++) {
+              if (i in t && fun.call(this, t[i], i, t)) {
+                  return true;
+              }
+          }
+
+          return false;
+      };
+  }
+
+  function isValid(m) {
+      if (m._isValid == null) {
+          var flags = getParsingFlags(m);
+          var parsedParts = some.call(flags.parsedDateParts, function (i) {
+              return i != null;
+          });
+          var isNowValid = !isNaN(m._d.getTime()) &&
+              flags.overflow < 0 &&
+              !flags.empty &&
+              !flags.invalidMonth &&
+              !flags.invalidWeekday &&
+              !flags.weekdayMismatch &&
+              !flags.nullInput &&
+              !flags.invalidFormat &&
+              !flags.userInvalidated &&
+              (!flags.meridiem || (flags.meridiem && parsedParts));
+
+          if (m._strict) {
+              isNowValid = isNowValid &&
+                  flags.charsLeftOver === 0 &&
+                  flags.unusedTokens.length === 0 &&
+                  flags.bigHour === undefined;
+          }
+
+          if (Object.isFrozen == null || !Object.isFrozen(m)) {
+              m._isValid = isNowValid;
+          }
+          else {
+              return isNowValid;
+          }
+      }
+      return m._isValid;
+  }
+
+  function createInvalid (flags) {
+      var m = createUTC(NaN);
+      if (flags != null) {
+          extend(getParsingFlags(m), flags);
+      }
+      else {
+          getParsingFlags(m).userInvalidated = true;
+      }
+
+      return m;
+  }
+
+  // Plugins that add properties should also add the key here (null value),
+  // so we can properly clone ourselves.
+  var momentProperties = hooks.momentProperties = [];
+
+  function copyConfig(to, from) {
+      var i, prop, val;
+
+      if (!isUndefined(from._isAMomentObject)) {
+          to._isAMomentObject = from._isAMomentObject;
+      }
+      if (!isUndefined(from._i)) {
+          to._i = from._i;
+      }
+      if (!isUndefined(from._f)) {
+          to._f = from._f;
+      }
+      if (!isUndefined(from._l)) {
+          to._l = from._l;
+      }
+      if (!isUndefined(from._strict)) {
+          to._strict = from._strict;
+      }
+      if (!isUndefined(from._tzm)) {
+          to._tzm = from._tzm;
+      }
+      if (!isUndefined(from._isUTC)) {
+          to._isUTC = from._isUTC;
+      }
+      if (!isUndefined(from._offset)) {
+          to._offset = from._offset;
+      }
+      if (!isUndefined(from._pf)) {
+          to._pf = getParsingFlags(from);
+      }
+      if (!isUndefined(from._locale)) {
+          to._locale = from._locale;
+      }
+
+      if (momentProperties.length > 0) {
+          for (i = 0; i < momentProperties.length; i++) {
+              prop = momentProperties[i];
+              val = from[prop];
+              if (!isUndefined(val)) {
+                  to[prop] = val;
+              }
+          }
+      }
+
+      return to;
+  }
+
+  var updateInProgress = false;
+
+  // Moment prototype object
+  function Moment(config) {
+      copyConfig(this, config);
+      this._d = new Date(config._d != null ? config._d.getTime() : NaN);
+      if (!this.isValid()) {
+          this._d = new Date(NaN);
+      }
+      // Prevent infinite loop in case updateOffset creates new moment
+      // objects.
+      if (updateInProgress === false) {
+          updateInProgress = true;
+          hooks.updateOffset(this);
+          updateInProgress = false;
+      }
+  }
+
+  function isMoment (obj) {
+      return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
+  }
+
+  function absFloor (number) {
+      if (number < 0) {
+          // -0 -> 0
+          return Math.ceil(number) || 0;
+      } else {
+          return Math.floor(number);
+      }
+  }
+
+  function toInt(argumentForCoercion) {
+      var coercedNumber = +argumentForCoercion,
+          value = 0;
+
+      if (coercedNumber !== 0 && isFinite(coercedNumber)) {
+          value = absFloor(coercedNumber);
+      }
+
+      return value;
+  }
+
+  // compare two arrays, return the number of differences
+  function compareArrays(array1, array2, dontConvert) {
+      var len = Math.min(array1.length, array2.length),
+          lengthDiff = Math.abs(array1.length - array2.length),
+          diffs = 0,
+          i;
+      for (i = 0; i < len; i++) {
+          if ((dontConvert && array1[i] !== array2[i]) ||
+              (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
+              diffs++;
+          }
+      }
+      return diffs + lengthDiff;
+  }
+
+  function warn(msg) {
+      if (hooks.suppressDeprecationWarnings === false &&
+              (typeof console !==  'undefined') && console.warn) {
+          console.warn('Deprecation warning: ' + msg);
+      }
+  }
+
+  function deprecate(msg, fn) {
+      var firstTime = true;
+
+      return extend(function () {
+          if (hooks.deprecationHandler != null) {
+              hooks.deprecationHandler(null, msg);
+          }
+          if (firstTime) {
+              var args = [];
+              var arg;
+              for (var i = 0; i < arguments.length; i++) {
+                  arg = '';
+                  if (typeof arguments[i] === 'object') {
+                      arg += '\n[' + i + '] ';
+                      for (var key in arguments[0]) {
+                          arg += key + ': ' + arguments[0][key] + ', ';
+                      }
+                      arg = arg.slice(0, -2); // Remove trailing comma and space
+                  } else {
+                      arg = arguments[i];
+                  }
+                  args.push(arg);
+              }
+              warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
+              firstTime = false;
+          }
+          return fn.apply(this, arguments);
+      }, fn);
+  }
+
+  var deprecations = {};
+
+  function deprecateSimple(name, msg) {
+      if (hooks.deprecationHandler != null) {
+          hooks.deprecationHandler(name, msg);
+      }
+      if (!deprecations[name]) {
+          warn(msg);
+          deprecations[name] = true;
+      }
+  }
+
+  hooks.suppressDeprecationWarnings = false;
+  hooks.deprecationHandler = null;
+
+  function isFunction(input) {
+      return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
+  }
+
+  function set (config) {
+      var prop, i;
+      for (i in config) {
+          prop = config[i];
+          if (isFunction(prop)) {
+              this[i] = prop;
+          } else {
+              this['_' + i] = prop;
+          }
+      }
+      this._config = config;
+      // Lenient ordinal parsing accepts just a number in addition to
+      // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
+      // TODO: Remove "ordinalParse" fallback in next major release.
+      this._dayOfMonthOrdinalParseLenient = new RegExp(
+          (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
+              '|' + (/\d{1,2}/).source);
+  }
+
+  function mergeConfigs(parentConfig, childConfig) {
+      var res = extend({}, parentConfig), prop;
+      for (prop in childConfig) {
+          if (hasOwnProp(childConfig, prop)) {
+              if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
+                  res[prop] = {};
+                  extend(res[prop], parentConfig[prop]);
+                  extend(res[prop], childConfig[prop]);
+              } else if (childConfig[prop] != null) {
+                  res[prop] = childConfig[prop];
+              } else {
+                  delete res[prop];
+              }
+          }
+      }
+      for (prop in parentConfig) {
+          if (hasOwnProp(parentConfig, prop) &&
+                  !hasOwnProp(childConfig, prop) &&
+                  isObject(parentConfig[prop])) {
+              // make sure changes to properties don't modify parent config
+              res[prop] = extend({}, res[prop]);
+          }
+      }
+      return res;
+  }
+
+  function Locale(config) {
+      if (config != null) {
+          this.set(config);
+      }
+  }
+
+  var keys;
+
+  if (Object.keys) {
+      keys = Object.keys;
+  } else {
+      keys = function (obj) {
+          var i, res = [];
+          for (i in obj) {
+              if (hasOwnProp(obj, i)) {
+                  res.push(i);
+              }
+          }
+          return res;
+      };
+  }
+
+  var defaultCalendar = {
+      sameDay : '[Today at] LT',
+      nextDay : '[Tomorrow at] LT',
+      nextWeek : 'dddd [at] LT',
+      lastDay : '[Yesterday at] LT',
+      lastWeek : '[Last] dddd [at] LT',
+      sameElse : 'L'
+  };
+
+  function calendar (key, mom, now) {
+      var output = this._calendar[key] || this._calendar['sameElse'];
+      return isFunction(output) ? output.call(mom, now) : output;
+  }
+
+  var defaultLongDateFormat = {
+      LTS  : 'h:mm:ss A',
+      LT   : 'h:mm A',
+      L    : 'MM/DD/YYYY',
+      LL   : 'MMMM D, YYYY',
+      LLL  : 'MMMM D, YYYY h:mm A',
+      LLLL : 'dddd, MMMM D, YYYY h:mm A'
+  };
+
+  function longDateFormat (key) {
+      var format = this._longDateFormat[key],
+          formatUpper = this._longDateFormat[key.toUpperCase()];
+
+      if (format || !formatUpper) {
+          return format;
+      }
+
+      this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
+          return val.slice(1);
+      });
+
+      return this._longDateFormat[key];
+  }
+
+  var defaultInvalidDate = 'Invalid date';
+
+  function invalidDate () {
+      return this._invalidDate;
+  }
+
+  var defaultOrdinal = '%d';
+  var defaultDayOfMonthOrdinalParse = /\d{1,2}/;
+
+  function ordinal (number) {
+      return this._ordinal.replace('%d', number);
+  }
+
+  var defaultRelativeTime = {
+      future : 'in %s',
+      past   : '%s ago',
+      s  : 'a few seconds',
+      ss : '%d seconds',
+      m  : 'a minute',
+      mm : '%d minutes',
+      h  : 'an hour',
+      hh : '%d hours',
+      d  : 'a day',
+      dd : '%d days',
+      M  : 'a month',
+      MM : '%d months',
+      y  : 'a year',
+      yy : '%d years'
+  };
+
+  function relativeTime (number, withoutSuffix, string, isFuture) {
+      var output = this._relativeTime[string];
+      return (isFunction(output)) ?
+          output(number, withoutSuffix, string, isFuture) :
+          output.replace(/%d/i, number);
+  }
+
+  function pastFuture (diff, output) {
+      var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
+      return isFunction(format) ? format(output) : format.replace(/%s/i, output);
+  }
+
+  var aliases = {};
+
+  function addUnitAlias (unit, shorthand) {
+      var lowerCase = unit.toLowerCase();
+      aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
+  }
+
+  function normalizeUnits(units) {
+      return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
+  }
+
+  function normalizeObjectUnits(inputObject) {
+      var normalizedInput = {},
+          normalizedProp,
+          prop;
+
+      for (prop in inputObject) {
+          if (hasOwnProp(inputObject, prop)) {
+              normalizedProp = normalizeUnits(prop);
+              if (normalizedProp) {
+                  normalizedInput[normalizedProp] = inputObject[prop];
+              }
+          }
+      }
+
+      return normalizedInput;
+  }
+
+  var priorities = {};
+
+  function addUnitPriority(unit, priority) {
+      priorities[unit] = priority;
+  }
+
+  function getPrioritizedUnits(unitsObj) {
+      var units = [];
+      for (var u in unitsObj) {
+          units.push({unit: u, priority: priorities[u]});
+      }
+      units.sort(function (a, b) {
+          return a.priority - b.priority;
+      });
+      return units;
+  }
+
+  function zeroFill(number, targetLength, forceSign) {
+      var absNumber = '' + Math.abs(number),
+          zerosToFill = targetLength - absNumber.length,
+          sign = number >= 0;
+      return (sign ? (forceSign ? '+' : '') : '-') +
+          Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
+  }
+
+  var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;
+
+  var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;
+
+  var formatFunctions = {};
+
+  var formatTokenFunctions = {};
+
+  // token:    'M'
+  // padded:   ['MM', 2]
+  // ordinal:  'Mo'
+  // callback: function () { this.month() + 1 }
+  function addFormatToken (token, padded, ordinal, callback) {
+      var func = callback;
+      if (typeof callback === 'string') {
+          func = function () {
+              return this[callback]();
+          };
+      }
+      if (token) {
+          formatTokenFunctions[token] = func;
+      }
+      if (padded) {
+          formatTokenFunctions[padded[0]] = function () {
+              return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
+          };
+      }
+      if (ordinal) {
+          formatTokenFunctions[ordinal] = function () {
+              return this.localeData().ordinal(func.apply(this, arguments), token);
+          };
+      }
+  }
+
+  function removeFormattingTokens(input) {
+      if (input.match(/\[[\s\S]/)) {
+          return input.replace(/^\[|\]$/g, '');
+      }
+      return input.replace(/\\/g, '');
+  }
+
+  function makeFormatFunction(format) {
+      var array = format.match(formattingTokens), i, length;
+
+      for (i = 0, length = array.length; i < length; i++) {
+          if (formatTokenFunctions[array[i]]) {
+              array[i] = formatTokenFunctions[array[i]];
+          } else {
+              array[i] = removeFormattingTokens(array[i]);
+          }
+      }
+
+      return function (mom) {
+          var output = '', i;
+          for (i = 0; i < length; i++) {
+              output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
+          }
+          return output;
+      };
+  }
+
+  // format date using native date object
+  function formatMoment(m, format) {
+      if (!m.isValid()) {
+          return m.localeData().invalidDate();
+      }
+
+      format = expandFormat(format, m.localeData());
+      formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);
+
+      return formatFunctions[format](m);
+  }
+
+  function expandFormat(format, locale) {
+      var i = 5;
+
+      function replaceLongDateFormatTokens(input) {
+          return locale.longDateFormat(input) || input;
+      }
+
+      localFormattingTokens.lastIndex = 0;
+      while (i >= 0 && localFormattingTokens.test(format)) {
+          format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
+          localFormattingTokens.lastIndex = 0;
+          i -= 1;
+      }
+
+      return format;
+  }
+
+  var match1         = /\d/;            //       0 - 9
+  var match2         = /\d\d/;          //      00 - 99
+  var match3         = /\d{3}/;         //     000 - 999
+  var match4         = /\d{4}/;         //    0000 - 9999
+  var match6         = /[+-]?\d{6}/;    // -999999 - 999999
+  var match1to2      = /\d\d?/;         //       0 - 99
+  var match3to4      = /\d\d\d\d?/;     //     999 - 9999
+  var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
+  var match1to3      = /\d{1,3}/;       //       0 - 999
+  var match1to4      = /\d{1,4}/;       //       0 - 9999
+  var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999
+
+  var matchUnsigned  = /\d+/;           //       0 - inf
+  var matchSigned    = /[+-]?\d+/;      //    -inf - inf
+
+  var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
+  var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z
+
+  var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123
+
+  // any word (or two) characters or numbers including two/three word month in arabic.
+  // includes scottish gaelic two word and hyphenated months
+  var matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i;
+
+  var regexes = {};
+
+  function addRegexToken (token, regex, strictRegex) {
+      regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
+          return (isStrict && strictRegex) ? strictRegex : regex;
+      };
+  }
+
+  function getParseRegexForToken (token, config) {
+      if (!hasOwnProp(regexes, token)) {
+          return new RegExp(unescapeFormat(token));
+      }
+
+      return regexes[token](config._strict, config._locale);
+  }
+
+  // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
+  function unescapeFormat(s) {
+      return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
+          return p1 || p2 || p3 || p4;
+      }));
+  }
+
+  function regexEscape(s) {
+      return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
+  }
+
+  var tokens = {};
+
+  function addParseToken (token, callback) {
+      var i, func = callback;
+      if (typeof token === 'string') {
+          token = [token];
+      }
+      if (isNumber(callback)) {
+          func = function (input, array) {
+              array[callback] = toInt(input);
+          };
+      }
+      for (i = 0; i < token.length; i++) {
+          tokens[token[i]] = func;
+      }
+  }
+
+  function addWeekParseToken (token, callback) {
+      addParseToken(token, function (input, array, config, token) {
+          config._w = config._w || {};
+          callback(input, config._w, config, token);
+      });
+  }
+
+  function addTimeToArrayFromToken(token, input, config) {
+      if (input != null && hasOwnProp(tokens, token)) {
+          tokens[token](input, config._a, config, token);
+      }
+  }
+
+  var YEAR = 0;
+  var MONTH = 1;
+  var DATE = 2;
+  var HOUR = 3;
+  var MINUTE = 4;
+  var SECOND = 5;
+  var MILLISECOND = 6;
+  var WEEK = 7;
+  var WEEKDAY = 8;
+
+  // FORMATTING
+
+  addFormatToken('Y', 0, 0, function () {
+      var y = this.year();
+      return y <= 9999 ? '' + y : '+' + y;
+  });
+
+  addFormatToken(0, ['YY', 2], 0, function () {
+      return this.year() % 100;
+  });
+
+  addFormatToken(0, ['YYYY',   4],       0, 'year');
+  addFormatToken(0, ['YYYYY',  5],       0, 'year');
+  addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
+
+  // ALIASES
+
+  addUnitAlias('year', 'y');
+
+  // PRIORITIES
+
+  addUnitPriority('year', 1);
+
+  // PARSING
+
+  addRegexToken('Y',      matchSigned);
+  addRegexToken('YY',     match1to2, match2);
+  addRegexToken('YYYY',   match1to4, match4);
+  addRegexToken('YYYYY',  match1to6, match6);
+  addRegexToken('YYYYYY', match1to6, match6);
+
+  addParseToken(['YYYYY', 'YYYYYY'], YEAR);
+  addParseToken('YYYY', function (input, array) {
+      array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
+  });
+  addParseToken('YY', function (input, array) {
+      array[YEAR] = hooks.parseTwoDigitYear(input);
+  });
+  addParseToken('Y', function (input, array) {
+      array[YEAR] = parseInt(input, 10);
+  });
+
+  // HELPERS
+
+  function daysInYear(year) {
+      return isLeapYear(year) ? 366 : 365;
+  }
+
+  function isLeapYear(year) {
+      return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
+  }
+
+  // HOOKS
+
+  hooks.parseTwoDigitYear = function (input) {
+      return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
+  };
+
+  // MOMENTS
+
+  var getSetYear = makeGetSet('FullYear', true);
+
+  function getIsLeapYear () {
+      return isLeapYear(this.year());
+  }
+
+  function makeGetSet (unit, keepTime) {
+      return function (value) {
+          if (value != null) {
+              set$1(this, unit, value);
+              hooks.updateOffset(this, keepTime);
+              return this;
+          } else {
+              return get(this, unit);
+          }
+      };
+  }
+
+  function get (mom, unit) {
+      return mom.isValid() ?
+          mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
+  }
+
+  function set$1 (mom, unit, value) {
+      if (mom.isValid() && !isNaN(value)) {
+          if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
+              mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
+          }
+          else {
+              mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
+          }
+      }
+  }
+
+  // MOMENTS
+
+  function stringGet (units) {
+      units = normalizeUnits(units);
+      if (isFunction(this[units])) {
+          return this[units]();
+      }
+      return this;
+  }
+
+
+  function stringSet (units, value) {
+      if (typeof units === 'object') {
+          units = normalizeObjectUnits(units);
+          var prioritized = getPrioritizedUnits(units);
+          for (var i = 0; i < prioritized.length; i++) {
+              this[prioritized[i].unit](units[prioritized[i].unit]);
+          }
+      } else {
+          units = normalizeUnits(units);
+          if (isFunction(this[units])) {
+              return this[units](value);
+          }
+      }
+      return this;
+  }
+
+  function mod(n, x) {
+      return ((n % x) + x) % x;
+  }
+
+  var indexOf;
+
+  if (Array.prototype.indexOf) {
+      indexOf = Array.prototype.indexOf;
+  } else {
+      indexOf = function (o) {
+          // I know
+          var i;
+          for (i = 0; i < this.length; ++i) {
+              if (this[i] === o) {
+                  return i;
+              }
+          }
+          return -1;
+      };
+  }
+
+  function daysInMonth(year, month) {
+      if (isNaN(year) || isNaN(month)) {
+          return NaN;
+      }
+      var modMonth = mod(month, 12);
+      year += (month - modMonth) / 12;
+      return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : (31 - modMonth % 7 % 2);
+  }
+
+  // FORMATTING
+
+  addFormatToken('M', ['MM', 2], 'Mo', function () {
+      return this.month() + 1;
+  });
+
+  addFormatToken('MMM', 0, 0, function (format) {
+      return this.localeData().monthsShort(this, format);
+  });
+
+  addFormatToken('MMMM', 0, 0, function (format) {
+      return this.localeData().months(this, format);
+  });
+
+  // ALIASES
+
+  addUnitAlias('month', 'M');
+
+  // PRIORITY
+
+  addUnitPriority('month', 8);
+
+  // PARSING
+
+  addRegexToken('M',    match1to2);
+  addRegexToken('MM',   match1to2, match2);
+  addRegexToken('MMM',  function (isStrict, locale) {
+      return locale.monthsShortRegex(isStrict);
+  });
+  addRegexToken('MMMM', function (isStrict, locale) {
+      return locale.monthsRegex(isStrict);
+  });
+
+  addParseToken(['M', 'MM'], function (input, array) {
+      array[MONTH] = toInt(input) - 1;
+  });
+
+  addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
+      var month = config._locale.monthsParse(input, token, config._strict);
+      // if we didn't find a month name, mark the date as invalid.
+      if (month != null) {
+          array[MONTH] = month;
+      } else {
+          getParsingFlags(config).invalidMonth = input;
+      }
+  });
+
+  // LOCALES
+
+  var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
+  var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
+  function localeMonths (m, format) {
+      if (!m) {
+          return isArray(this._months) ? this._months :
+              this._months['standalone'];
+      }
+      return isArray(this._months) ? this._months[m.month()] :
+          this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
+  }
+
+  var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
+  function localeMonthsShort (m, format) {
+      if (!m) {
+          return isArray(this._monthsShort) ? this._monthsShort :
+              this._monthsShort['standalone'];
+      }
+      return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
+          this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
+  }
+
+  function handleStrictParse(monthName, format, strict) {
+      var i, ii, mom, llc = monthName.toLocaleLowerCase();
+      if (!this._monthsParse) {
+          // this is not used
+          this._monthsParse = [];
+          this._longMonthsParse = [];
+          this._shortMonthsParse = [];
+          for (i = 0; i < 12; ++i) {
+              mom = createUTC([2000, i]);
+              this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
+              this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
+          }
+      }
+
+      if (strict) {
+          if (format === 'MMM') {
+              ii = indexOf.call(this._shortMonthsParse, llc);
+              return ii !== -1 ? ii : null;
+          } else {
+              ii = indexOf.call(this._longMonthsParse, llc);
+              return ii !== -1 ? ii : null;
+          }
+      } else {
+          if (format === 'MMM') {
+              ii = indexOf.call(this._shortMonthsParse, llc);
+              if (ii !== -1) {
+                  return ii;
+              }
+              ii = indexOf.call(this._longMonthsParse, llc);
+              return ii !== -1 ? ii : null;
+          } else {
+              ii = indexOf.call(this._longMonthsParse, llc);
+              if (ii !== -1) {
+                  return ii;
+              }
+              ii = indexOf.call(this._shortMonthsParse, llc);
+              return ii !== -1 ? ii : null;
+          }
+      }
+  }
+
+  function localeMonthsParse (monthName, format, strict) {
+      var i, mom, regex;
+
+      if (this._monthsParseExact) {
+          return handleStrictParse.call(this, monthName, format, strict);
+      }
+
+      if (!this._monthsParse) {
+          this._monthsParse = [];
+          this._longMonthsParse = [];
+          this._shortMonthsParse = [];
+      }
+
+      // TODO: add sorting
+      // Sorting makes sure if one month (or abbr) is a prefix of another
+      // see sorting in computeMonthsParse
+      for (i = 0; i < 12; i++) {
+          // make the regex if we don't have it already
+          mom = createUTC([2000, i]);
+          if (strict && !this._longMonthsParse[i]) {
+              this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
+              this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
+          }
+          if (!strict && !this._monthsParse[i]) {
+              regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
+              this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
+          }
+          // test the regex
+          if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
+              return i;
+          } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
+              return i;
+          } else if (!strict && this._monthsParse[i].test(monthName)) {
+              return i;
+          }
+      }
+  }
+
+  // MOMENTS
+
+  function setMonth (mom, value) {
+      var dayOfMonth;
+
+      if (!mom.isValid()) {
+          // No op
+          return mom;
+      }
+
+      if (typeof value === 'string') {
+          if (/^\d+$/.test(value)) {
+              value = toInt(value);
+          } else {
+              value = mom.localeData().monthsParse(value);
+              // TODO: Another silent failure?
+              if (!isNumber(value)) {
+                  return mom;
+              }
+          }
+      }
+
+      dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
+      mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
+      return mom;
+  }
+
+  function getSetMonth (value) {
+      if (value != null) {
+          setMonth(this, value);
+          hooks.updateOffset(this, true);
+          return this;
+      } else {
+          return get(this, 'Month');
+      }
+  }
+
+  function getDaysInMonth () {
+      return daysInMonth(this.year(), this.month());
+  }
+
+  var defaultMonthsShortRegex = matchWord;
+  function monthsShortRegex (isStrict) {
+      if (this._monthsParseExact) {
+          if (!hasOwnProp(this, '_monthsRegex')) {
+              computeMonthsParse.call(this);
+          }
+          if (isStrict) {
+              return this._monthsShortStrictRegex;
+          } else {
+              return this._monthsShortRegex;
+          }
+      } else {
+          if (!hasOwnProp(this, '_monthsShortRegex')) {
+              this._monthsShortRegex = defaultMonthsShortRegex;
+          }
+          return this._monthsShortStrictRegex && isStrict ?
+              this._monthsShortStrictRegex : this._monthsShortRegex;
+      }
+  }
+
+  var defaultMonthsRegex = matchWord;
+  function monthsRegex (isStrict) {
+      if (this._monthsParseExact) {
+          if (!hasOwnProp(this, '_monthsRegex')) {
+              computeMonthsParse.call(this);
+          }
+          if (isStrict) {
+              return this._monthsStrictRegex;
+          } else {
+              return this._monthsRegex;
+          }
+      } else {
+          if (!hasOwnProp(this, '_monthsRegex')) {
+              this._monthsRegex = defaultMonthsRegex;
+          }
+          return this._monthsStrictRegex && isStrict ?
+              this._monthsStrictRegex : this._monthsRegex;
+      }
+  }
+
+  function computeMonthsParse () {
+      function cmpLenRev(a, b) {
+          return b.length - a.length;
+      }
+
+      var shortPieces = [], longPieces = [], mixedPieces = [],
+          i, mom;
+      for (i = 0; i < 12; i++) {
+          // make the regex if we don't have it already
+          mom = createUTC([2000, i]);
+          shortPieces.push(this.monthsShort(mom, ''));
+          longPieces.push(this.months(mom, ''));
+          mixedPieces.push(this.months(mom, ''));
+          mixedPieces.push(this.monthsShort(mom, ''));
+      }
+      // Sorting makes sure if one month (or abbr) is a prefix of another it
+      // will match the longer piece.
+      shortPieces.sort(cmpLenRev);
+      longPieces.sort(cmpLenRev);
+      mixedPieces.sort(cmpLenRev);
+      for (i = 0; i < 12; i++) {
+          shortPieces[i] = regexEscape(shortPieces[i]);
+          longPieces[i] = regexEscape(longPieces[i]);
+      }
+      for (i = 0; i < 24; i++) {
+          mixedPieces[i] = regexEscape(mixedPieces[i]);
+      }
+
+      this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+      this._monthsShortRegex = this._monthsRegex;
+      this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
+      this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
+  }
+
+  function createDate (y, m, d, h, M, s, ms) {
+      // can't just apply() to create a date:
+      // https://stackoverflow.com/q/181348
+      var date;
+      // the date constructor remaps years 0-99 to 1900-1999
+      if (y < 100 && y >= 0) {
+          // preserve leap years using a full 400 year cycle, then reset
+          date = new Date(y + 400, m, d, h, M, s, ms);
+          if (isFinite(date.getFullYear())) {
+              date.setFullYear(y);
+          }
+      } else {
+          date = new Date(y, m, d, h, M, s, ms);
+      }
+
+      return date;
+  }
+
+  function createUTCDate (y) {
+      var date;
+      // the Date.UTC function remaps years 0-99 to 1900-1999
+      if (y < 100 && y >= 0) {
+          var args = Array.prototype.slice.call(arguments);
+          // preserve leap years using a full 400 year cycle, then reset
+          args[0] = y + 400;
+          date = new Date(Date.UTC.apply(null, args));
+          if (isFinite(date.getUTCFullYear())) {
+              date.setUTCFullYear(y);
+          }
+      } else {
+          date = new Date(Date.UTC.apply(null, arguments));
+      }
+
+      return date;
+  }
+
+  // start-of-first-week - start-of-year
+  function firstWeekOffset(year, dow, doy) {
+      var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
+          fwd = 7 + dow - doy,
+          // first-week day local weekday -- which local weekday is fwd
+          fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
+
+      return -fwdlw + fwd - 1;
+  }
+
+  // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
+  function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
+      var localWeekday = (7 + weekday - dow) % 7,
+          weekOffset = firstWeekOffset(year, dow, doy),
+          dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
+          resYear, resDayOfYear;
+
+      if (dayOfYear <= 0) {
+          resYear = year - 1;
+          resDayOfYear = daysInYear(resYear) + dayOfYear;
+      } else if (dayOfYear > daysInYear(year)) {
+          resYear = year + 1;
+          resDayOfYear = dayOfYear - daysInYear(year);
+      } else {
+          resYear = year;
+          resDayOfYear = dayOfYear;
+      }
+
+      return {
+          year: resYear,
+          dayOfYear: resDayOfYear
+      };
+  }
+
+  function weekOfYear(mom, dow, doy) {
+      var weekOffset = firstWeekOffset(mom.year(), dow, doy),
+          week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
+          resWeek, resYear;
+
+      if (week < 1) {
+          resYear = mom.year() - 1;
+          resWeek = week + weeksInYear(resYear, dow, doy);
+      } else if (week > weeksInYear(mom.year(), dow, doy)) {
+          resWeek = week - weeksInYear(mom.year(), dow, doy);
+          resYear = mom.year() + 1;
+      } else {
+          resYear = mom.year();
+          resWeek = week;
+      }
+
+      return {
+          week: resWeek,
+          year: resYear
+      };
+  }
+
+  function weeksInYear(year, dow, doy) {
+      var weekOffset = firstWeekOffset(year, dow, doy),
+          weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
+      return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
+  }
+
+  // FORMATTING
+
+  addFormatToken('w', ['ww', 2], 'wo', 'week');
+  addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
+
+  // ALIASES
+
+  addUnitAlias('week', 'w');
+  addUnitAlias('isoWeek', 'W');
+
+  // PRIORITIES
+
+  addUnitPriority('week', 5);
+  addUnitPriority('isoWeek', 5);
+
+  // PARSING
+
+  addRegexToken('w',  match1to2);
+  addRegexToken('ww', match1to2, match2);
+  addRegexToken('W',  match1to2);
+  addRegexToken('WW', match1to2, match2);
+
+  addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
+      week[token.substr(0, 1)] = toInt(input);
+  });
+
+  // HELPERS
+
+  // LOCALES
+
+  function localeWeek (mom) {
+      return weekOfYear(mom, this._week.dow, this._week.doy).week;
+  }
+
+  var defaultLocaleWeek = {
+      dow : 0, // Sunday is the first day of the week.
+      doy : 6  // The week that contains Jan 6th is the first week of the year.
+  };
+
+  function localeFirstDayOfWeek () {
+      return this._week.dow;
+  }
+
+  function localeFirstDayOfYear () {
+      return this._week.doy;
+  }
+
+  // MOMENTS
+
+  function getSetWeek (input) {
+      var week = this.localeData().week(this);
+      return input == null ? week : this.add((input - week) * 7, 'd');
+  }
+
+  function getSetISOWeek (input) {
+      var week = weekOfYear(this, 1, 4).week;
+      return input == null ? week : this.add((input - week) * 7, 'd');
+  }
+
+  // FORMATTING
+
+  addFormatToken('d', 0, 'do', 'day');
+
+  addFormatToken('dd', 0, 0, function (format) {
+      return this.localeData().weekdaysMin(this, format);
+  });
+
+  addFormatToken('ddd', 0, 0, function (format) {
+      return this.localeData().weekdaysShort(this, format);
+  });
+
+  addFormatToken('dddd', 0, 0, function (format) {
+      return this.localeData().weekdays(this, format);
+  });
+
+  addFormatToken('e', 0, 0, 'weekday');
+  addFormatToken('E', 0, 0, 'isoWeekday');
+
+  // ALIASES
+
+  addUnitAlias('day', 'd');
+  addUnitAlias('weekday', 'e');
+  addUnitAlias('isoWeekday', 'E');
+
+  // PRIORITY
+  addUnitPriority('day', 11);
+  addUnitPriority('weekday', 11);
+  addUnitPriority('isoWeekday', 11);
+
+  // PARSING
+
+  addRegexToken('d',    match1to2);
+  addRegexToken('e',    match1to2);
+  addRegexToken('E',    match1to2);
+  addRegexToken('dd',   function (isStrict, locale) {
+      return locale.weekdaysMinRegex(isStrict);
+  });
+  addRegexToken('ddd',   function (isStrict, locale) {
+      return locale.weekdaysShortRegex(isStrict);
+  });
+  addRegexToken('dddd',   function (isStrict, locale) {
+      return locale.weekdaysRegex(isStrict);
+  });
+
+  addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
+      var weekday = config._locale.weekdaysParse(input, token, config._strict);
+      // if we didn't get a weekday name, mark the date as invalid
+      if (weekday != null) {
+          week.d = weekday;
+      } else {
+          getParsingFlags(config).invalidWeekday = input;
+      }
+  });
+
+  addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
+      week[token] = toInt(input);
+  });
+
+  // HELPERS
+
+  function parseWeekday(input, locale) {
+      if (typeof input !== 'string') {
+          return input;
+      }
+
+      if (!isNaN(input)) {
+          return parseInt(input, 10);
+      }
+
+      input = locale.weekdaysParse(input);
+      if (typeof input === 'number') {
+          return input;
+      }
+
+      return null;
+  }
+
+  function parseIsoWeekday(input, locale) {
+      if (typeof input === 'string') {
+          return locale.weekdaysParse(input) % 7 || 7;
+      }
+      return isNaN(input) ? null : input;
+  }
+
+  // LOCALES
+  function shiftWeekdays (ws, n) {
+      return ws.slice(n, 7).concat(ws.slice(0, n));
+  }
+
+  var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
+  function localeWeekdays (m, format) {
+      var weekdays = isArray(this._weekdays) ? this._weekdays :
+          this._weekdays[(m && m !== true && this._weekdays.isFormat.test(format)) ? 'format' : 'standalone'];
+      return (m === true) ? shiftWeekdays(weekdays, this._week.dow)
+          : (m) ? weekdays[m.day()] : weekdays;
+  }
+
+  var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
+  function localeWeekdaysShort (m) {
+      return (m === true) ? shiftWeekdays(this._weekdaysShort, this._week.dow)
+          : (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
+  }
+
+  var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
+  function localeWeekdaysMin (m) {
+      return (m === true) ? shiftWeekdays(this._weekdaysMin, this._week.dow)
+          : (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
+  }
+
+  function handleStrictParse$1(weekdayName, format, strict) {
+      var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
+      if (!this._weekdaysParse) {
+          this._weekdaysParse = [];
+          this._shortWeekdaysParse = [];
+          this._minWeekdaysParse = [];
+
+          for (i = 0; i < 7; ++i) {
+              mom = createUTC([2000, 1]).day(i);
+              this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
+              this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
+              this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
+          }
+      }
+
+      if (strict) {
+          if (format === 'dddd') {
+              ii = indexOf.call(this._weekdaysParse, llc);
+              return ii !== -1 ? ii : null;
+          } else if (format === 'ddd') {
+              ii = indexOf.call(this._shortWeekdaysParse, llc);
+              return ii !== -1 ? ii : null;
+          } else {
+              ii = indexOf.call(this._minWeekdaysParse, llc);
+              return ii !== -1 ? ii : null;
+          }
+      } else {
+          if (format === 'dddd') {
+              ii = indexOf.call(this._weekdaysParse, llc);
+              if (ii !== -1) {
+                  return ii;
+              }
+              ii = indexOf.call(this._shortWeekdaysParse, llc);
+              if (ii !== -1) {
+                  return ii;
+              }
+              ii = indexOf.call(this._minWeekdaysParse, llc);
+              return ii !== -1 ? ii : null;
+          } else if (format === 'ddd') {
+              ii = indexOf.call(this._shortWeekdaysParse, llc);
+              if (ii !== -1) {
+                  return ii;
+              }
+              ii = indexOf.call(this._weekdaysParse, llc);
+              if (ii !== -1) {
+                  return ii;
+              }
+              ii = indexOf.call(this._minWeekdaysParse, llc);
+              return ii !== -1 ? ii : null;
+          } else {
+              ii = indexOf.call(this._minWeekdaysParse, llc);
+              if (ii !== -1) {
+                  return ii;
+              }
+              ii = indexOf.call(this._weekdaysParse, llc);
+              if (ii !== -1) {
+                  return ii;
+              }
+              ii = indexOf.call(this._shortWeekdaysParse, llc);
+              return ii !== -1 ? ii : null;
+          }
+      }
+  }
+
+  function localeWeekdaysParse (weekdayName, format, strict) {
+      var i, mom, regex;
+
+      if (this._weekdaysParseExact) {
+          return handleStrictParse$1.call(this, weekdayName, format, strict);
+      }
+
+      if (!this._weekdaysParse) {
+          this._weekdaysParse = [];
+          this._minWeekdaysParse = [];
+          this._shortWeekdaysParse = [];
+          this._fullWeekdaysParse = [];
+      }
+
+      for (i = 0; i < 7; i++) {
+          // make the regex if we don't have it already
+
+          mom = createUTC([2000, 1]).day(i);
+          if (strict && !this._fullWeekdaysParse[i]) {
+              this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\\.?') + '$', 'i');
+              this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$', 'i');
+              this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$', 'i');
+          }
+          if (!this._weekdaysParse[i]) {
+              regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
+              this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
+          }
+          // test the regex
+          if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
+              return i;
+          } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
+              return i;
+          } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
+              return i;
+          } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
+              return i;
+          }
+      }
+  }
+
+  // MOMENTS
+
+  function getSetDayOfWeek (input) {
+      if (!this.isValid()) {
+          return input != null ? this : NaN;
+      }
+      var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
+      if (input != null) {
+          input = parseWeekday(input, this.localeData());
+          return this.add(input - day, 'd');
+      } else {
+          return day;
+      }
+  }
+
+  function getSetLocaleDayOfWeek (input) {
+      if (!this.isValid()) {
+          return input != null ? this : NaN;
+      }
+      var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
+      return input == null ? weekday : this.add(input - weekday, 'd');
+  }
+
+  function getSetISODayOfWeek (input) {
+      if (!this.isValid()) {
+          return input != null ? this : NaN;
+      }
+
+      // behaves the same as moment#day except
+      // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
+      // as a setter, sunday should belong to the previous week.
+
+      if (input != null) {
+          var weekday = parseIsoWeekday(input, this.localeData());
+          return this.day(this.day() % 7 ? weekday : weekday - 7);
+      } else {
+          return this.day() || 7;
+      }
+  }
+
+  var defaultWeekdaysRegex = matchWord;
+  function weekdaysRegex (isStrict) {
+      if (this._weekdaysParseExact) {
+          if (!hasOwnProp(this, '_weekdaysRegex')) {
+              computeWeekdaysParse.call(this);
+          }
+          if (isStrict) {
+              return this._weekdaysStrictRegex;
+          } else {
+              return this._weekdaysRegex;
+          }
+      } else {
+          if (!hasOwnProp(this, '_weekdaysRegex')) {
+              this._weekdaysRegex = defaultWeekdaysRegex;
+          }
+          return this._weekdaysStrictRegex && isStrict ?
+              this._weekdaysStrictRegex : this._weekdaysRegex;
+      }
+  }
+
+  var defaultWeekdaysShortRegex = matchWord;
+  function weekdaysShortRegex (isStrict) {
+      if (this._weekdaysParseExact) {
+          if (!hasOwnProp(this, '_weekdaysRegex')) {
+              computeWeekdaysParse.call(this);
+          }
+          if (isStrict) {
+              return this._weekdaysShortStrictRegex;
+          } else {
+              return this._weekdaysShortRegex;
+          }
+      } else {
+          if (!hasOwnProp(this, '_weekdaysShortRegex')) {
+              this._weekdaysShortRegex = defaultWeekdaysShortRegex;
+          }
+          return this._weekdaysShortStrictRegex && isStrict ?
+              this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
+      }
+  }
+
+  var defaultWeekdaysMinRegex = matchWord;
+  function weekdaysMinRegex (isStrict) {
+      if (this._weekdaysParseExact) {
+          if (!hasOwnProp(this, '_weekdaysRegex')) {
+              computeWeekdaysParse.call(this);
+          }
+          if (isStrict) {
+              return this._weekdaysMinStrictRegex;
+          } else {
+              return this._weekdaysMinRegex;
+          }
+      } else {
+          if (!hasOwnProp(this, '_weekdaysMinRegex')) {
+              this._weekdaysMinRegex = defaultWeekdaysMinRegex;
+          }
+          return this._weekdaysMinStrictRegex && isStrict ?
+              this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
+      }
+  }
+
+
+  function computeWeekdaysParse () {
+      function cmpLenRev(a, b) {
+          return b.length - a.length;
+      }
+
+      var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
+          i, mom, minp, shortp, longp;
+      for (i = 0; i < 7; i++) {
+          // make the regex if we don't have it already
+          mom = createUTC([2000, 1]).day(i);
+          minp = this.weekdaysMin(mom, '');
+          shortp = this.weekdaysShort(mom, '');
+          longp = this.weekdays(mom, '');
+          minPieces.push(minp);
+          shortPieces.push(shortp);
+          longPieces.push(longp);
+          mixedPieces.push(minp);
+          mixedPieces.push(shortp);
+          mixedPieces.push(longp);
+      }
+      // Sorting makes sure if one weekday (or abbr) is a prefix of another it
+      // will match the longer piece.
+      minPieces.sort(cmpLenRev);
+      shortPieces.sort(cmpLenRev);
+      longPieces.sort(cmpLenRev);
+      mixedPieces.sort(cmpLenRev);
+      for (i = 0; i < 7; i++) {
+          shortPieces[i] = regexEscape(shortPieces[i]);
+          longPieces[i] = regexEscape(longPieces[i]);
+          mixedPieces[i] = regexEscape(mixedPieces[i]);
+      }
+
+      this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+      this._weekdaysShortRegex = this._weekdaysRegex;
+      this._weekdaysMinRegex = this._weekdaysRegex;
+
+      this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
+      this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
+      this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
+  }
+
+  // FORMATTING
+
+  function hFormat() {
+      return this.hours() % 12 || 12;
+  }
+
+  function kFormat() {
+      return this.hours() || 24;
+  }
+
+  addFormatToken('H', ['HH', 2], 0, 'hour');
+  addFormatToken('h', ['hh', 2], 0, hFormat);
+  addFormatToken('k', ['kk', 2], 0, kFormat);
+
+  addFormatToken('hmm', 0, 0, function () {
+      return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
+  });
+
+  addFormatToken('hmmss', 0, 0, function () {
+      return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
+          zeroFill(this.seconds(), 2);
+  });
+
+  addFormatToken('Hmm', 0, 0, function () {
+      return '' + this.hours() + zeroFill(this.minutes(), 2);
+  });
+
+  addFormatToken('Hmmss', 0, 0, function () {
+      return '' + this.hours() + zeroFill(this.minutes(), 2) +
+          zeroFill(this.seconds(), 2);
+  });
+
+  function meridiem (token, lowercase) {
+      addFormatToken(token, 0, 0, function () {
+          return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
+      });
+  }
+
+  meridiem('a', true);
+  meridiem('A', false);
+
+  // ALIASES
+
+  addUnitAlias('hour', 'h');
+
+  // PRIORITY
+  addUnitPriority('hour', 13);
+
+  // PARSING
+
+  function matchMeridiem (isStrict, locale) {
+      return locale._meridiemParse;
+  }
+
+  addRegexToken('a',  matchMeridiem);
+  addRegexToken('A',  matchMeridiem);
+  addRegexToken('H',  match1to2);
+  addRegexToken('h',  match1to2);
+  addRegexToken('k',  match1to2);
+  addRegexToken('HH', match1to2, match2);
+  addRegexToken('hh', match1to2, match2);
+  addRegexToken('kk', match1to2, match2);
+
+  addRegexToken('hmm', match3to4);
+  addRegexToken('hmmss', match5to6);
+  addRegexToken('Hmm', match3to4);
+  addRegexToken('Hmmss', match5to6);
+
+  addParseToken(['H', 'HH'], HOUR);
+  addParseToken(['k', 'kk'], function (input, array, config) {
+      var kInput = toInt(input);
+      array[HOUR] = kInput === 24 ? 0 : kInput;
+  });
+  addParseToken(['a', 'A'], function (input, array, config) {
+      config._isPm = config._locale.isPM(input);
+      config._meridiem = input;
+  });
+  addParseToken(['h', 'hh'], function (input, array, config) {
+      array[HOUR] = toInt(input);
+      getParsingFlags(config).bigHour = true;
+  });
+  addParseToken('hmm', function (input, array, config) {
+      var pos = input.length - 2;
+      array[HOUR] = toInt(input.substr(0, pos));
+      array[MINUTE] = toInt(input.substr(pos));
+      getParsingFlags(config).bigHour = true;
+  });
+  addParseToken('hmmss', function (input, array, config) {
+      var pos1 = input.length - 4;
+      var pos2 = input.length - 2;
+      array[HOUR] = toInt(input.substr(0, pos1));
+      array[MINUTE] = toInt(input.substr(pos1, 2));
+      array[SECOND] = toInt(input.substr(pos2));
+      getParsingFlags(config).bigHour = true;
+  });
+  addParseToken('Hmm', function (input, array, config) {
+      var pos = input.length - 2;
+      array[HOUR] = toInt(input.substr(0, pos));
+      array[MINUTE] = toInt(input.substr(pos));
+  });
+  addParseToken('Hmmss', function (input, array, config) {
+      var pos1 = input.length - 4;
+      var pos2 = input.length - 2;
+      array[HOUR] = toInt(input.substr(0, pos1));
+      array[MINUTE] = toInt(input.substr(pos1, 2));
+      array[SECOND] = toInt(input.substr(pos2));
+  });
+
+  // LOCALES
+
+  function localeIsPM (input) {
+      // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
+      // Using charAt should be more compatible.
+      return ((input + '').toLowerCase().charAt(0) === 'p');
+  }
+
+  var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
+  function localeMeridiem (hours, minutes, isLower) {
+      if (hours > 11) {
+          return isLower ? 'pm' : 'PM';
+      } else {
+          return isLower ? 'am' : 'AM';
+      }
+  }
+
+
+  // MOMENTS
+
+  // Setting the hour should keep the time, because the user explicitly
+  // specified which hour they want. So trying to maintain the same hour (in
+  // a new timezone) makes sense. Adding/subtracting hours does not follow
+  // this rule.
+  var getSetHour = makeGetSet('Hours', true);
+
+  var baseConfig = {
+      calendar: defaultCalendar,
+      longDateFormat: defaultLongDateFormat,
+      invalidDate: defaultInvalidDate,
+      ordinal: defaultOrdinal,
+      dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
+      relativeTime: defaultRelativeTime,
+
+      months: defaultLocaleMonths,
+      monthsShort: defaultLocaleMonthsShort,
+
+      week: defaultLocaleWeek,
+
+      weekdays: defaultLocaleWeekdays,
+      weekdaysMin: defaultLocaleWeekdaysMin,
+      weekdaysShort: defaultLocaleWeekdaysShort,
+
+      meridiemParse: defaultLocaleMeridiemParse
+  };
+
+  // internal storage for locale config files
+  var locales = {};
+  var localeFamilies = {};
+  var globalLocale;
+
+  function normalizeLocale(key) {
+      return key ? key.toLowerCase().replace('_', '-') : key;
+  }
+
+  // pick the locale from the array
+  // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
+  // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
+  function chooseLocale(names) {
+      var i = 0, j, next, locale, split;
+
+      while (i < names.length) {
+          split = normalizeLocale(names[i]).split('-');
+          j = split.length;
+          next = normalizeLocale(names[i + 1]);
+          next = next ? next.split('-') : null;
+          while (j > 0) {
+              locale = loadLocale(split.slice(0, j).join('-'));
+              if (locale) {
+                  return locale;
+              }
+              if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
+                  //the next array item is better than a shallower substring of this one
+                  break;
+              }
+              j--;
+          }
+          i++;
+      }
+      return globalLocale;
+  }
+
+  function loadLocale(name) {
+      var oldLocale = null;
+      // TODO: Find a better way to register and load all the locales in Node
+      if (!locales[name] && (typeof module !== 'undefined') &&
+              module && module.exports) {
+          try {
+              oldLocale = globalLocale._abbr;
+              var aliasedRequire = require;
+              aliasedRequire('./locale/' + name);
+              getSetGlobalLocale(oldLocale);
+          } catch (e) {}
+      }
+      return locales[name];
+  }
+
+  // This function will load locale and then set the global locale.  If
+  // no arguments are passed in, it will simply return the current global
+  // locale key.
+  function getSetGlobalLocale (key, values) {
+      var data;
+      if (key) {
+          if (isUndefined(values)) {
+              data = getLocale(key);
+          }
+          else {
+              data = defineLocale(key, values);
+          }
+
+          if (data) {
+              // moment.duration._locale = moment._locale = data;
+              globalLocale = data;
+          }
+          else {
+              if ((typeof console !==  'undefined') && console.warn) {
+                  //warn user if arguments are passed but the locale could not be set
+                  console.warn('Locale ' + key +  ' not found. Did you forget to load it?');
+              }
+          }
+      }
+
+      return globalLocale._abbr;
+  }
+
+  function defineLocale (name, config) {
+      if (config !== null) {
+          var locale, parentConfig = baseConfig;
+          config.abbr = name;
+          if (locales[name] != null) {
+              deprecateSimple('defineLocaleOverride',
+                      'use moment.updateLocale(localeName, config) to change ' +
+                      'an existing locale. moment.defineLocale(localeName, ' +
+                      'config) should only be used for creating a new locale ' +
+                      'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
+              parentConfig = locales[name]._config;
+          } else if (config.parentLocale != null) {
+              if (locales[config.parentLocale] != null) {
+                  parentConfig = locales[config.parentLocale]._config;
+              } else {
+                  locale = loadLocale(config.parentLocale);
+                  if (locale != null) {
+                      parentConfig = locale._config;
+                  } else {
+                      if (!localeFamilies[config.parentLocale]) {
+                          localeFamilies[config.parentLocale] = [];
+                      }
+                      localeFamilies[config.parentLocale].push({
+                          name: name,
+                          config: config
+                      });
+                      return null;
+                  }
+              }
+          }
+          locales[name] = new Locale(mergeConfigs(parentConfig, config));
+
+          if (localeFamilies[name]) {
+              localeFamilies[name].forEach(function (x) {
+                  defineLocale(x.name, x.config);
+              });
+          }
+
+          // backwards compat for now: also set the locale
+          // make sure we set the locale AFTER all child locales have been
+          // created, so we won't end up with the child locale set.
+          getSetGlobalLocale(name);
+
+
+          return locales[name];
+      } else {
+          // useful for testing
+          delete locales[name];
+          return null;
+      }
+  }
+
+  function updateLocale(name, config) {
+      if (config != null) {
+          var locale, tmpLocale, parentConfig = baseConfig;
+          // MERGE
+          tmpLocale = loadLocale(name);
+          if (tmpLocale != null) {
+              parentConfig = tmpLocale._config;
+          }
+          config = mergeConfigs(parentConfig, config);
+          locale = new Locale(config);
+          locale.parentLocale = locales[name];
+          locales[name] = locale;
+
+          // backwards compat for now: also set the locale
+          getSetGlobalLocale(name);
+      } else {
+          // pass null for config to unupdate, useful for tests
+          if (locales[name] != null) {
+              if (locales[name].parentLocale != null) {
+                  locales[name] = locales[name].parentLocale;
+              } else if (locales[name] != null) {
+                  delete locales[name];
+              }
+          }
+      }
+      return locales[name];
+  }
+
+  // returns locale data
+  function getLocale (key) {
+      var locale;
+
+      if (key && key._locale && key._locale._abbr) {
+          key = key._locale._abbr;
+      }
+
+      if (!key) {
+          return globalLocale;
+      }
+
+      if (!isArray(key)) {
+          //short-circuit everything else
+          locale = loadLocale(key);
+          if (locale) {
+              return locale;
+          }
+          key = [key];
+      }
+
+      return chooseLocale(key);
+  }
+
+  function listLocales() {
+      return keys(locales);
+  }
+
+  function checkOverflow (m) {
+      var overflow;
+      var a = m._a;
+
+      if (a && getParsingFlags(m).overflow === -2) {
+          overflow =
+              a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
+              a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
+              a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
+              a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
+              a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
+              a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
+              -1;
+
+          if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
+              overflow = DATE;
+          }
+          if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
+              overflow = WEEK;
+          }
+          if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
+              overflow = WEEKDAY;
+          }
+
+          getParsingFlags(m).overflow = overflow;
+      }
+
+      return m;
+  }
+
+  // Pick the first defined of two or three arguments.
+  function defaults(a, b, c) {
+      if (a != null) {
+          return a;
+      }
+      if (b != null) {
+          return b;
+      }
+      return c;
+  }
+
+  function currentDateArray(config) {
+      // hooks is actually the exported moment object
+      var nowValue = new Date(hooks.now());
+      if (config._useUTC) {
+          return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
+      }
+      return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
+  }
+
+  // convert an array to a date.
+  // the array should mirror the parameters below
+  // note: all values past the year are optional and will default to the lowest possible value.
+  // [year, month, day , hour, minute, second, millisecond]
+  function configFromArray (config) {
+      var i, date, input = [], currentDate, expectedWeekday, yearToUse;
+
+      if (config._d) {
+          return;
+      }
+
+      currentDate = currentDateArray(config);
+
+      //compute day of the year from weeks and weekdays
+      if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
+          dayOfYearFromWeekInfo(config);
+      }
+
+      //if the day of the year is set, figure out what it is
+      if (config._dayOfYear != null) {
+          yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
+
+          if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
+              getParsingFlags(config)._overflowDayOfYear = true;
+          }
+
+          date = createUTCDate(yearToUse, 0, config._dayOfYear);
+          config._a[MONTH] = date.getUTCMonth();
+          config._a[DATE] = date.getUTCDate();
+      }
+
+      // Default to current date.
+      // * if no year, month, day of month are given, default to today
+      // * if day of month is given, default month and year
+      // * if month is given, default only year
+      // * if year is given, don't default anything
+      for (i = 0; i < 3 && config._a[i] == null; ++i) {
+          config._a[i] = input[i] = currentDate[i];
+      }
+
+      // Zero out whatever was not defaulted, including time
+      for (; i < 7; i++) {
+          config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
+      }
+
+      // Check for 24:00:00.000
+      if (config._a[HOUR] === 24 &&
+              config._a[MINUTE] === 0 &&
+              config._a[SECOND] === 0 &&
+              config._a[MILLISECOND] === 0) {
+          config._nextDay = true;
+          config._a[HOUR] = 0;
+      }
+
+      config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
+      expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay();
+
+      // Apply timezone offset from input. The actual utcOffset can be changed
+      // with parseZone.
+      if (config._tzm != null) {
+          config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+      }
+
+      if (config._nextDay) {
+          config._a[HOUR] = 24;
+      }
+
+      // check for mismatching day of week
+      if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
+          getParsingFlags(config).weekdayMismatch = true;
+      }
+  }
+
+  function dayOfYearFromWeekInfo(config) {
+      var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;
+
+      w = config._w;
+      if (w.GG != null || w.W != null || w.E != null) {
+          dow = 1;
+          doy = 4;
+
+          // TODO: We need to take the current isoWeekYear, but that depends on
+          // how we interpret now (local, utc, fixed offset). So create
+          // a now version of current config (take local/utc/offset flags, and
+          // create now).
+          weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
+          week = defaults(w.W, 1);
+          weekday = defaults(w.E, 1);
+          if (weekday < 1 || weekday > 7) {
+              weekdayOverflow = true;
+          }
+      } else {
+          dow = config._locale._week.dow;
+          doy = config._locale._week.doy;
+
+          var curWeek = weekOfYear(createLocal(), dow, doy);
+
+          weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);
+
+          // Default to current week.
+          week = defaults(w.w, curWeek.week);
+
+          if (w.d != null) {
+              // weekday -- low day numbers are considered next week
+              weekday = w.d;
+              if (weekday < 0 || weekday > 6) {
+                  weekdayOverflow = true;
+              }
+          } else if (w.e != null) {
+              // local weekday -- counting starts from beginning of week
+              weekday = w.e + dow;
+              if (w.e < 0 || w.e > 6) {
+                  weekdayOverflow = true;
+              }
+          } else {
+              // default to beginning of week
+              weekday = dow;
+          }
+      }
+      if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
+          getParsingFlags(config)._overflowWeeks = true;
+      } else if (weekdayOverflow != null) {
+          getParsingFlags(config)._overflowWeekday = true;
+      } else {
+          temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
+          config._a[YEAR] = temp.year;
+          config._dayOfYear = temp.dayOfYear;
+      }
+  }
+
+  // iso 8601 regex
+  // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
+  var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
+  var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
+
+  var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;
+
+  var isoDates = [
+      ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
+      ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
+      ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
+      ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
+      ['YYYY-DDD', /\d{4}-\d{3}/],
+      ['YYYY-MM', /\d{4}-\d\d/, false],
+      ['YYYYYYMMDD', /[+-]\d{10}/],
+      ['YYYYMMDD', /\d{8}/],
+      // YYYYMM is NOT allowed by the standard
+      ['GGGG[W]WWE', /\d{4}W\d{3}/],
+      ['GGGG[W]WW', /\d{4}W\d{2}/, false],
+      ['YYYYDDD', /\d{7}/]
+  ];
+
+  // iso time formats and regexes
+  var isoTimes = [
+      ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
+      ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
+      ['HH:mm:ss', /\d\d:\d\d:\d\d/],
+      ['HH:mm', /\d\d:\d\d/],
+      ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
+      ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
+      ['HHmmss', /\d\d\d\d\d\d/],
+      ['HHmm', /\d\d\d\d/],
+      ['HH', /\d\d/]
+  ];
+
+  var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;
+
+  // date from iso format
+  function configFromISO(config) {
+      var i, l,
+          string = config._i,
+          match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
+          allowTime, dateFormat, timeFormat, tzFormat;
+
+      if (match) {
+          getParsingFlags(config).iso = true;
+
+          for (i = 0, l = isoDates.length; i < l; i++) {
+              if (isoDates[i][1].exec(match[1])) {
+                  dateFormat = isoDates[i][0];
+                  allowTime = isoDates[i][2] !== false;
+                  break;
+              }
+          }
+          if (dateFormat == null) {
+              config._isValid = false;
+              return;
+          }
+          if (match[3]) {
+              for (i = 0, l = isoTimes.length; i < l; i++) {
+                  if (isoTimes[i][1].exec(match[3])) {
+                      // match[2] should be 'T' or space
+                      timeFormat = (match[2] || ' ') + isoTimes[i][0];
+                      break;
+                  }
+              }
+              if (timeFormat == null) {
+                  config._isValid = false;
+                  return;
+              }
+          }
+          if (!allowTime && timeFormat != null) {
+              config._isValid = false;
+              return;
+          }
+          if (match[4]) {
+              if (tzRegex.exec(match[4])) {
+                  tzFormat = 'Z';
+              } else {
+                  config._isValid = false;
+                  return;
+              }
+          }
+          config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
+          configFromStringAndFormat(config);
+      } else {
+          config._isValid = false;
+      }
+  }
+
+  // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
+  var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;
+
+  function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
+      var result = [
+          untruncateYear(yearStr),
+          defaultLocaleMonthsShort.indexOf(monthStr),
+          parseInt(dayStr, 10),
+          parseInt(hourStr, 10),
+          parseInt(minuteStr, 10)
+      ];
+
+      if (secondStr) {
+          result.push(parseInt(secondStr, 10));
+      }
+
+      return result;
+  }
+
+  function untruncateYear(yearStr) {
+      var year = parseInt(yearStr, 10);
+      if (year <= 49) {
+          return 2000 + year;
+      } else if (year <= 999) {
+          return 1900 + year;
+      }
+      return year;
+  }
+
+  function preprocessRFC2822(s) {
+      // Remove comments and folding whitespace and replace multiple-spaces with a single space
+      return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+  }
+
+  function checkWeekday(weekdayStr, parsedInput, config) {
+      if (weekdayStr) {
+          // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
+          var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
+              weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
+          if (weekdayProvided !== weekdayActual) {
+              getParsingFlags(config).weekdayMismatch = true;
+              config._isValid = false;
+              return false;
+          }
+      }
+      return true;
+  }
+
+  var obsOffsets = {
+      UT: 0,
+      GMT: 0,
+      EDT: -4 * 60,
+      EST: -5 * 60,
+      CDT: -5 * 60,
+      CST: -6 * 60,
+      MDT: -6 * 60,
+      MST: -7 * 60,
+      PDT: -7 * 60,
+      PST: -8 * 60
+  };
+
+  function calculateOffset(obsOffset, militaryOffset, numOffset) {
+      if (obsOffset) {
+          return obsOffsets[obsOffset];
+      } else if (militaryOffset) {
+          // the only allowed military tz is Z
+          return 0;
+      } else {
+          var hm = parseInt(numOffset, 10);
+          var m = hm % 100, h = (hm - m) / 100;
+          return h * 60 + m;
+      }
+  }
+
+  // date and time from ref 2822 format
+  function configFromRFC2822(config) {
+      var match = rfc2822.exec(preprocessRFC2822(config._i));
+      if (match) {
+          var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
+          if (!checkWeekday(match[1], parsedArray, config)) {
+              return;
+          }
+
+          config._a = parsedArray;
+          config._tzm = calculateOffset(match[8], match[9], match[10]);
+
+          config._d = createUTCDate.apply(null, config._a);
+          config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+
+          getParsingFlags(config).rfc2822 = true;
+      } else {
+          config._isValid = false;
+      }
+  }
+
+  // date from iso format or fallback
+  function configFromString(config) {
+      var matched = aspNetJsonRegex.exec(config._i);
+
+      if (matched !== null) {
+          config._d = new Date(+matched[1]);
+          return;
+      }
+
+      configFromISO(config);
+      if (config._isValid === false) {
+          delete config._isValid;
+      } else {
+          return;
+      }
+
+      configFromRFC2822(config);
+      if (config._isValid === false) {
+          delete config._isValid;
+      } else {
+          return;
+      }
+
+      // Final attempt, use Input Fallback
+      hooks.createFromInputFallback(config);
+  }
+
+  hooks.createFromInputFallback = deprecate(
+      'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
+      'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
+      'discouraged and will be removed in an upcoming major release. Please refer to ' +
+      'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
+      function (config) {
+          config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
+      }
+  );
+
+  // constant that refers to the ISO standard
+  hooks.ISO_8601 = function () {};
+
+  // constant that refers to the RFC 2822 form
+  hooks.RFC_2822 = function () {};
+
+  // date from string and format string
+  function configFromStringAndFormat(config) {
+      // TODO: Move this to another part of the creation flow to prevent circular deps
+      if (config._f === hooks.ISO_8601) {
+          configFromISO(config);
+          return;
+      }
+      if (config._f === hooks.RFC_2822) {
+          configFromRFC2822(config);
+          return;
+      }
+      config._a = [];
+      getParsingFlags(config).empty = true;
+
+      // This array is used to make a Date, either with `new Date` or `Date.UTC`
+      var string = '' + config._i,
+          i, parsedInput, tokens, token, skipped,
+          stringLength = string.length,
+          totalParsedInputLength = 0;
+
+      tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];
+
+      for (i = 0; i < tokens.length; i++) {
+          token = tokens[i];
+          parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
+          // console.log('token', token, 'parsedInput', parsedInput,
+          //         'regex', getParseRegexForToken(token, config));
+          if (parsedInput) {
+              skipped = string.substr(0, string.indexOf(parsedInput));
+              if (skipped.length > 0) {
+                  getParsingFlags(config).unusedInput.push(skipped);
+              }
+              string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
+              totalParsedInputLength += parsedInput.length;
+          }
+          // don't parse if it's not a known token
+          if (formatTokenFunctions[token]) {
+              if (parsedInput) {
+                  getParsingFlags(config).empty = false;
+              }
+              else {
+                  getParsingFlags(config).unusedTokens.push(token);
+              }
+              addTimeToArrayFromToken(token, parsedInput, config);
+          }
+          else if (config._strict && !parsedInput) {
+              getParsingFlags(config).unusedTokens.push(token);
+          }
+      }
+
+      // add remaining unparsed input length to the string
+      getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
+      if (string.length > 0) {
+          getParsingFlags(config).unusedInput.push(string);
+      }
+
+      // clear _12h flag if hour is <= 12
+      if (config._a[HOUR] <= 12 &&
+          getParsingFlags(config).bigHour === true &&
+          config._a[HOUR] > 0) {
+          getParsingFlags(config).bigHour = undefined;
+      }
+
+      getParsingFlags(config).parsedDateParts = config._a.slice(0);
+      getParsingFlags(config).meridiem = config._meridiem;
+      // handle meridiem
+      config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);
+
+      configFromArray(config);
+      checkOverflow(config);
+  }
+
+
+  function meridiemFixWrap (locale, hour, meridiem) {
+      var isPm;
+
+      if (meridiem == null) {
+          // nothing to do
+          return hour;
+      }
+      if (locale.meridiemHour != null) {
+          return locale.meridiemHour(hour, meridiem);
+      } else if (locale.isPM != null) {
+          // Fallback
+          isPm = locale.isPM(meridiem);
+          if (isPm && hour < 12) {
+              hour += 12;
+          }
+          if (!isPm && hour === 12) {
+              hour = 0;
+          }
+          return hour;
+      } else {
+          // this is not supposed to happen
+          return hour;
+      }
+  }
+
+  // date from string and array of format strings
+  function configFromStringAndArray(config) {
+      var tempConfig,
+          bestMoment,
+
+          scoreToBeat,
+          i,
+          currentScore;
+
+      if (config._f.length === 0) {
+          getParsingFlags(config).invalidFormat = true;
+          config._d = new Date(NaN);
+          return;
+      }
+
+      for (i = 0; i < config._f.length; i++) {
+          currentScore = 0;
+          tempConfig = copyConfig({}, config);
+          if (config._useUTC != null) {
+              tempConfig._useUTC = config._useUTC;
+          }
+          tempConfig._f = config._f[i];
+          configFromStringAndFormat(tempConfig);
+
+          if (!isValid(tempConfig)) {
+              continue;
+          }
+
+          // if there is any input that was not parsed add a penalty for that format
+          currentScore += getParsingFlags(tempConfig).charsLeftOver;
+
+          //or tokens
+          currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
+
+          getParsingFlags(tempConfig).score = currentScore;
+
+          if (scoreToBeat == null || currentScore < scoreToBeat) {
+              scoreToBeat = currentScore;
+              bestMoment = tempConfig;
+          }
+      }
+
+      extend(config, bestMoment || tempConfig);
+  }
+
+  function configFromObject(config) {
+      if (config._d) {
+          return;
+      }
+
+      var i = normalizeObjectUnits(config._i);
+      config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
+          return obj && parseInt(obj, 10);
+      });
+
+      configFromArray(config);
+  }
+
+  function createFromConfig (config) {
+      var res = new Moment(checkOverflow(prepareConfig(config)));
+      if (res._nextDay) {
+          // Adding is smart enough around DST
+          res.add(1, 'd');
+          res._nextDay = undefined;
+      }
+
+      return res;
+  }
+
+  function prepareConfig (config) {
+      var input = config._i,
+          format = config._f;
+
+      config._locale = config._locale || getLocale(config._l);
+
+      if (input === null || (format === undefined && input === '')) {
+          return createInvalid({nullInput: true});
+      }
+
+      if (typeof input === 'string') {
+          config._i = input = config._locale.preparse(input);
+      }
+
+      if (isMoment(input)) {
+          return new Moment(checkOverflow(input));
+      } else if (isDate(input)) {
+          config._d = input;
+      } else if (isArray(format)) {
+          configFromStringAndArray(config);
+      } else if (format) {
+          configFromStringAndFormat(config);
+      }  else {
+          configFromInput(config);
+      }
+
+      if (!isValid(config)) {
+          config._d = null;
+      }
+
+      return config;
+  }
+
+  function configFromInput(config) {
+      var input = config._i;
+      if (isUndefined(input)) {
+          config._d = new Date(hooks.now());
+      } else if (isDate(input)) {
+          config._d = new Date(input.valueOf());
+      } else if (typeof input === 'string') {
+          configFromString(config);
+      } else if (isArray(input)) {
+          config._a = map(input.slice(0), function (obj) {
+              return parseInt(obj, 10);
+          });
+          configFromArray(config);
+      } else if (isObject(input)) {
+          configFromObject(config);
+      } else if (isNumber(input)) {
+          // from milliseconds
+          config._d = new Date(input);
+      } else {
+          hooks.createFromInputFallback(config);
+      }
+  }
+
+  function createLocalOrUTC (input, format, locale, strict, isUTC) {
+      var c = {};
+
+      if (locale === true || locale === false) {
+          strict = locale;
+          locale = undefined;
+      }
+
+      if ((isObject(input) && isObjectEmpty(input)) ||
+              (isArray(input) && input.length === 0)) {
+          input = undefined;
+      }
+      // object construction must be done this way.
+      // https://github.com/moment/moment/issues/1423
+      c._isAMomentObject = true;
+      c._useUTC = c._isUTC = isUTC;
+      c._l = locale;
+      c._i = input;
+      c._f = format;
+      c._strict = strict;
+
+      return createFromConfig(c);
+  }
+
+  function createLocal (input, format, locale, strict) {
+      return createLocalOrUTC(input, format, locale, strict, false);
+  }
+
+  var prototypeMin = deprecate(
+      'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
+      function () {
+          var other = createLocal.apply(null, arguments);
+          if (this.isValid() && other.isValid()) {
+              return other < this ? this : other;
+          } else {
+              return createInvalid();
+          }
+      }
+  );
+
+  var prototypeMax = deprecate(
+      'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
+      function () {
+          var other = createLocal.apply(null, arguments);
+          if (this.isValid() && other.isValid()) {
+              return other > this ? this : other;
+          } else {
+              return createInvalid();
+          }
+      }
+  );
+
+  // Pick a moment m from moments so that m[fn](other) is true for all
+  // other. This relies on the function fn to be transitive.
+  //
+  // moments should either be an array of moment objects or an array, whose
+  // first element is an array of moment objects.
+  function pickBy(fn, moments) {
+      var res, i;
+      if (moments.length === 1 && isArray(moments[0])) {
+          moments = moments[0];
+      }
+      if (!moments.length) {
+          return createLocal();
+      }
+      res = moments[0];
+      for (i = 1; i < moments.length; ++i) {
+          if (!moments[i].isValid() || moments[i][fn](res)) {
+              res = moments[i];
+          }
+      }
+      return res;
+  }
+
+  // TODO: Use [].sort instead?
+  function min () {
+      var args = [].slice.call(arguments, 0);
+
+      return pickBy('isBefore', args);
+  }
+
+  function max () {
+      var args = [].slice.call(arguments, 0);
+
+      return pickBy('isAfter', args);
+  }
+
+  var now = function () {
+      return Date.now ? Date.now() : +(new Date());
+  };
+
+  var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];
+
+  function isDurationValid(m) {
+      for (var key in m) {
+          if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
+              return false;
+          }
+      }
+
+      var unitHasDecimal = false;
+      for (var i = 0; i < ordering.length; ++i) {
+          if (m[ordering[i]]) {
+              if (unitHasDecimal) {
+                  return false; // only allow non-integers for smallest unit
+              }
+              if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
+                  unitHasDecimal = true;
+              }
+          }
+      }
+
+      return true;
+  }
+
+  function isValid$1() {
+      return this._isValid;
+  }
+
+  function createInvalid$1() {
+      return createDuration(NaN);
+  }
+
+  function Duration (duration) {
+      var normalizedInput = normalizeObjectUnits(duration),
+          years = normalizedInput.year || 0,
+          quarters = normalizedInput.quarter || 0,
+          months = normalizedInput.month || 0,
+          weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
+          days = normalizedInput.day || 0,
+          hours = normalizedInput.hour || 0,
+          minutes = normalizedInput.minute || 0,
+          seconds = normalizedInput.second || 0,
+          milliseconds = normalizedInput.millisecond || 0;
+
+      this._isValid = isDurationValid(normalizedInput);
+
+      // representation for dateAddRemove
+      this._milliseconds = +milliseconds +
+          seconds * 1e3 + // 1000
+          minutes * 6e4 + // 1000 * 60
+          hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
+      // Because of dateAddRemove treats 24 hours as different from a
+      // day when working around DST, we need to store them separately
+      this._days = +days +
+          weeks * 7;
+      // It is impossible to translate months into days without knowing
+      // which months you are are talking about, so we have to store
+      // it separately.
+      this._months = +months +
+          quarters * 3 +
+          years * 12;
+
+      this._data = {};
+
+      this._locale = getLocale();
+
+      this._bubble();
+  }
+
+  function isDuration (obj) {
+      return obj instanceof Duration;
+  }
+
+  function absRound (number) {
+      if (number < 0) {
+          return Math.round(-1 * number) * -1;
+      } else {
+          return Math.round(number);
+      }
+  }
+
+  // FORMATTING
+
+  function offset (token, separator) {
+      addFormatToken(token, 0, 0, function () {
+          var offset = this.utcOffset();
+          var sign = '+';
+          if (offset < 0) {
+              offset = -offset;
+              sign = '-';
+          }
+          return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
+      });
+  }
+
+  offset('Z', ':');
+  offset('ZZ', '');
+
+  // PARSING
+
+  addRegexToken('Z',  matchShortOffset);
+  addRegexToken('ZZ', matchShortOffset);
+  addParseToken(['Z', 'ZZ'], function (input, array, config) {
+      config._useUTC = true;
+      config._tzm = offsetFromString(matchShortOffset, input);
+  });
+
+  // HELPERS
+
+  // timezone chunker
+  // '+10:00' > ['10',  '00']
+  // '-1530'  > ['-15', '30']
+  var chunkOffset = /([\+\-]|\d\d)/gi;
+
+  function offsetFromString(matcher, string) {
+      var matches = (string || '').match(matcher);
+
+      if (matches === null) {
+          return null;
+      }
+
+      var chunk   = matches[matches.length - 1] || [];
+      var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
+      var minutes = +(parts[1] * 60) + toInt(parts[2]);
+
+      return minutes === 0 ?
+        0 :
+        parts[0] === '+' ? minutes : -minutes;
+  }
+
+  // Return a moment from input, that is local/utc/zone equivalent to model.
+  function cloneWithOffset(input, model) {
+      var res, diff;
+      if (model._isUTC) {
+          res = model.clone();
+          diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
+          // Use low-level api, because this fn is low-level api.
+          res._d.setTime(res._d.valueOf() + diff);
+          hooks.updateOffset(res, false);
+          return res;
+      } else {
+          return createLocal(input).local();
+      }
+  }
+
+  function getDateOffset (m) {
+      // On Firefox.24 Date#getTimezoneOffset returns a floating point.
+      // https://github.com/moment/moment/pull/1871
+      return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
+  }
+
+  // HOOKS
+
+  // This function will be called whenever a moment is mutated.
+  // It is intended to keep the offset in sync with the timezone.
+  hooks.updateOffset = function () {};
+
+  // MOMENTS
+
+  // keepLocalTime = true means only change the timezone, without
+  // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
+  // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
+  // +0200, so we adjust the time as needed, to be valid.
+  //
+  // Keeping the time actually adds/subtracts (one hour)
+  // from the actual represented time. That is why we call updateOffset
+  // a second time. In case it wants us to change the offset again
+  // _changeInProgress == true case, then we have to adjust, because
+  // there is no such time in the given timezone.
+  function getSetOffset (input, keepLocalTime, keepMinutes) {
+      var offset = this._offset || 0,
+          localAdjust;
+      if (!this.isValid()) {
+          return input != null ? this : NaN;
+      }
+      if (input != null) {
+          if (typeof input === 'string') {
+              input = offsetFromString(matchShortOffset, input);
+              if (input === null) {
+                  return this;
+              }
+          } else if (Math.abs(input) < 16 && !keepMinutes) {
+              input = input * 60;
+          }
+          if (!this._isUTC && keepLocalTime) {
+              localAdjust = getDateOffset(this);
+          }
+          this._offset = input;
+          this._isUTC = true;
+          if (localAdjust != null) {
+              this.add(localAdjust, 'm');
+          }
+          if (offset !== input) {
+              if (!keepLocalTime || this._changeInProgress) {
+                  addSubtract(this, createDuration(input - offset, 'm'), 1, false);
+              } else if (!this._changeInProgress) {
+                  this._changeInProgress = true;
+                  hooks.updateOffset(this, true);
+                  this._changeInProgress = null;
+              }
+          }
+          return this;
+      } else {
+          return this._isUTC ? offset : getDateOffset(this);
+      }
+  }
+
+  function getSetZone (input, keepLocalTime) {
+      if (input != null) {
+          if (typeof input !== 'string') {
+              input = -input;
+          }
+
+          this.utcOffset(input, keepLocalTime);
+
+          return this;
+      } else {
+          return -this.utcOffset();
+      }
+  }
+
+  function setOffsetToUTC (keepLocalTime) {
+      return this.utcOffset(0, keepLocalTime);
+  }
+
+  function setOffsetToLocal (keepLocalTime) {
+      if (this._isUTC) {
+          this.utcOffset(0, keepLocalTime);
+          this._isUTC = false;
+
+          if (keepLocalTime) {
+              this.subtract(getDateOffset(this), 'm');
+          }
+      }
+      return this;
+  }
+
+  function setOffsetToParsedOffset () {
+      if (this._tzm != null) {
+          this.utcOffset(this._tzm, false, true);
+      } else if (typeof this._i === 'string') {
+          var tZone = offsetFromString(matchOffset, this._i);
+          if (tZone != null) {
+              this.utcOffset(tZone);
+          }
+          else {
+              this.utcOffset(0, true);
+          }
+      }
+      return this;
+  }
+
+  function hasAlignedHourOffset (input) {
+      if (!this.isValid()) {
+          return false;
+      }
+      input = input ? createLocal(input).utcOffset() : 0;
+
+      return (this.utcOffset() - input) % 60 === 0;
+  }
+
+  function isDaylightSavingTime () {
+      return (
+          this.utcOffset() > this.clone().month(0).utcOffset() ||
+          this.utcOffset() > this.clone().month(5).utcOffset()
+      );
+  }
+
+  function isDaylightSavingTimeShifted () {
+      if (!isUndefined(this._isDSTShifted)) {
+          return this._isDSTShifted;
+      }
+
+      var c = {};
+
+      copyConfig(c, this);
+      c = prepareConfig(c);
+
+      if (c._a) {
+          var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
+          this._isDSTShifted = this.isValid() &&
+              compareArrays(c._a, other.toArray()) > 0;
+      } else {
+          this._isDSTShifted = false;
+      }
+
+      return this._isDSTShifted;
+  }
+
+  function isLocal () {
+      return this.isValid() ? !this._isUTC : false;
+  }
+
+  function isUtcOffset () {
+      return this.isValid() ? this._isUTC : false;
+  }
+
+  function isUtc () {
+      return this.isValid() ? this._isUTC && this._offset === 0 : false;
+  }
+
+  // ASP.NET json date format regex
+  var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;
+
+  // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
+  // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
+  // and further modified to allow for strings containing both week and day
+  var isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
+
+  function createDuration (input, key) {
+      var duration = input,
+          // matching against regexp is expensive, do it on demand
+          match = null,
+          sign,
+          ret,
+          diffRes;
+
+      if (isDuration(input)) {
+          duration = {
+              ms : input._milliseconds,
+              d  : input._days,
+              M  : input._months
+          };
+      } else if (isNumber(input)) {
+          duration = {};
+          if (key) {
+              duration[key] = input;
+          } else {
+              duration.milliseconds = input;
+          }
+      } else if (!!(match = aspNetRegex.exec(input))) {
+          sign = (match[1] === '-') ? -1 : 1;
+          duration = {
+              y  : 0,
+              d  : toInt(match[DATE])                         * sign,
+              h  : toInt(match[HOUR])                         * sign,
+              m  : toInt(match[MINUTE])                       * sign,
+              s  : toInt(match[SECOND])                       * sign,
+              ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
+          };
+      } else if (!!(match = isoRegex.exec(input))) {
+          sign = (match[1] === '-') ? -1 : 1;
+          duration = {
+              y : parseIso(match[2], sign),
+              M : parseIso(match[3], sign),
+              w : parseIso(match[4], sign),
+              d : parseIso(match[5], sign),
+              h : parseIso(match[6], sign),
+              m : parseIso(match[7], sign),
+              s : parseIso(match[8], sign)
+          };
+      } else if (duration == null) {// checks for null or undefined
+          duration = {};
+      } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
+          diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));
+
+          duration = {};
+          duration.ms = diffRes.milliseconds;
+          duration.M = diffRes.months;
+      }
+
+      ret = new Duration(duration);
+
+      if (isDuration(input) && hasOwnProp(input, '_locale')) {
+          ret._locale = input._locale;
+      }
+
+      return ret;
+  }
+
+  createDuration.fn = Duration.prototype;
+  createDuration.invalid = createInvalid$1;
+
+  function parseIso (inp, sign) {
+      // We'd normally use ~~inp for this, but unfortunately it also
+      // converts floats to ints.
+      // inp may be undefined, so careful calling replace on it.
+      var res = inp && parseFloat(inp.replace(',', '.'));
+      // apply sign while we're at it
+      return (isNaN(res) ? 0 : res) * sign;
+  }
+
+  function positiveMomentsDifference(base, other) {
+      var res = {};
+
+      res.months = other.month() - base.month() +
+          (other.year() - base.year()) * 12;
+      if (base.clone().add(res.months, 'M').isAfter(other)) {
+          --res.months;
+      }
+
+      res.milliseconds = +other - +(base.clone().add(res.months, 'M'));
+
+      return res;
+  }
+
+  function momentsDifference(base, other) {
+      var res;
+      if (!(base.isValid() && other.isValid())) {
+          return {milliseconds: 0, months: 0};
+      }
+
+      other = cloneWithOffset(other, base);
+      if (base.isBefore(other)) {
+          res = positiveMomentsDifference(base, other);
+      } else {
+          res = positiveMomentsDifference(other, base);
+          res.milliseconds = -res.milliseconds;
+          res.months = -res.months;
+      }
+
+      return res;
+  }
+
+  // TODO: remove 'name' arg after deprecation is removed
+  function createAdder(direction, name) {
+      return function (val, period) {
+          var dur, tmp;
+          //invert the arguments, but complain about it
+          if (period !== null && !isNaN(+period)) {
+              deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
+              'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
+              tmp = val; val = period; period = tmp;
+          }
+
+          val = typeof val === 'string' ? +val : val;
+          dur = createDuration(val, period);
+          addSubtract(this, dur, direction);
+          return this;
+      };
+  }
+
+  function addSubtract (mom, duration, isAdding, updateOffset) {
+      var milliseconds = duration._milliseconds,
+          days = absRound(duration._days),
+          months = absRound(duration._months);
+
+      if (!mom.isValid()) {
+          // No op
+          return;
+      }
+
+      updateOffset = updateOffset == null ? true : updateOffset;
+
+      if (months) {
+          setMonth(mom, get(mom, 'Month') + months * isAdding);
+      }
+      if (days) {
+          set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
+      }
+      if (milliseconds) {
+          mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
+      }
+      if (updateOffset) {
+          hooks.updateOffset(mom, days || months);
+      }
+  }
+
+  var add      = createAdder(1, 'add');
+  var subtract = createAdder(-1, 'subtract');
+
+  function getCalendarFormat(myMoment, now) {
+      var diff = myMoment.diff(now, 'days', true);
+      return diff < -6 ? 'sameElse' :
+              diff < -1 ? 'lastWeek' :
+              diff < 0 ? 'lastDay' :
+              diff < 1 ? 'sameDay' :
+              diff < 2 ? 'nextDay' :
+              diff < 7 ? 'nextWeek' : 'sameElse';
+  }
+
+  function calendar$1 (time, formats) {
+      // We want to compare the start of today, vs this.
+      // Getting start-of-today depends on whether we're local/utc/offset or not.
+      var now = time || createLocal(),
+          sod = cloneWithOffset(now, this).startOf('day'),
+          format = hooks.calendarFormat(this, sod) || 'sameElse';
+
+      var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);
+
+      return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
+  }
+
+  function clone () {
+      return new Moment(this);
+  }
+
+  function isAfter (input, units) {
+      var localInput = isMoment(input) ? input : createLocal(input);
+      if (!(this.isValid() && localInput.isValid())) {
+          return false;
+      }
+      units = normalizeUnits(units) || 'millisecond';
+      if (units === 'millisecond') {
+          return this.valueOf() > localInput.valueOf();
+      } else {
+          return localInput.valueOf() < this.clone().startOf(units).valueOf();
+      }
+  }
+
+  function isBefore (input, units) {
+      var localInput = isMoment(input) ? input : createLocal(input);
+      if (!(this.isValid() && localInput.isValid())) {
+          return false;
+      }
+      units = normalizeUnits(units) || 'millisecond';
+      if (units === 'millisecond') {
+          return this.valueOf() < localInput.valueOf();
+      } else {
+          return this.clone().endOf(units).valueOf() < localInput.valueOf();
+      }
+  }
+
+  function isBetween (from, to, units, inclusivity) {
+      var localFrom = isMoment(from) ? from : createLocal(from),
+          localTo = isMoment(to) ? to : createLocal(to);
+      if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
+          return false;
+      }
+      inclusivity = inclusivity || '()';
+      return (inclusivity[0] === '(' ? this.isAfter(localFrom, units) : !this.isBefore(localFrom, units)) &&
+          (inclusivity[1] === ')' ? this.isBefore(localTo, units) : !this.isAfter(localTo, units));
+  }
+
+  function isSame (input, units) {
+      var localInput = isMoment(input) ? input : createLocal(input),
+          inputMs;
+      if (!(this.isValid() && localInput.isValid())) {
+          return false;
+      }
+      units = normalizeUnits(units) || 'millisecond';
+      if (units === 'millisecond') {
+          return this.valueOf() === localInput.valueOf();
+      } else {
+          inputMs = localInput.valueOf();
+          return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
+      }
+  }
+
+  function isSameOrAfter (input, units) {
+      return this.isSame(input, units) || this.isAfter(input, units);
+  }
+
+  function isSameOrBefore (input, units) {
+      return this.isSame(input, units) || this.isBefore(input, units);
+  }
+
+  function diff (input, units, asFloat) {
+      var that,
+          zoneDelta,
+          output;
+
+      if (!this.isValid()) {
+          return NaN;
+      }
+
+      that = cloneWithOffset(input, this);
+
+      if (!that.isValid()) {
+          return NaN;
+      }
+
+      zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
+
+      units = normalizeUnits(units);
+
+      switch (units) {
+          case 'year': output = monthDiff(this, that) / 12; break;
+          case 'month': output = monthDiff(this, that); break;
+          case 'quarter': output = monthDiff(this, that) / 3; break;
+          case 'second': output = (this - that) / 1e3; break; // 1000
+          case 'minute': output = (this - that) / 6e4; break; // 1000 * 60
+          case 'hour': output = (this - that) / 36e5; break; // 1000 * 60 * 60
+          case 'day': output = (this - that - zoneDelta) / 864e5; break; // 1000 * 60 * 60 * 24, negate dst
+          case 'week': output = (this - that - zoneDelta) / 6048e5; break; // 1000 * 60 * 60 * 24 * 7, negate dst
+          default: output = this - that;
+      }
+
+      return asFloat ? output : absFloor(output);
+  }
+
+  function monthDiff (a, b) {
+      // difference in months
+      var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
+          // b is in (anchor - 1 month, anchor + 1 month)
+          anchor = a.clone().add(wholeMonthDiff, 'months'),
+          anchor2, adjust;
+
+      if (b - anchor < 0) {
+          anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
+          // linear across the month
+          adjust = (b - anchor) / (anchor - anchor2);
+      } else {
+          anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
+          // linear across the month
+          adjust = (b - anchor) / (anchor2 - anchor);
+      }
+
+      //check for negative zero, return zero if negative zero
+      return -(wholeMonthDiff + adjust) || 0;
+  }
+
+  hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
+  hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
+
+  function toString () {
+      return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
+  }
+
+  function toISOString(keepOffset) {
+      if (!this.isValid()) {
+          return null;
+      }
+      var utc = keepOffset !== true;
+      var m = utc ? this.clone().utc() : this;
+      if (m.year() < 0 || m.year() > 9999) {
+          return formatMoment(m, utc ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ');
+      }
+      if (isFunction(Date.prototype.toISOString)) {
+          // native implementation is ~50x faster, use it when we can
+          if (utc) {
+              return this.toDate().toISOString();
+          } else {
+              return new Date(this.valueOf() + this.utcOffset() * 60 * 1000).toISOString().replace('Z', formatMoment(m, 'Z'));
+          }
+      }
+      return formatMoment(m, utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ');
+  }
+
+  /**
+   * Return a human readable representation of a moment that can
+   * also be evaluated to get a new moment which is the same
+   *
+   * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
+   */
+  function inspect () {
+      if (!this.isValid()) {
+          return 'moment.invalid(/* ' + this._i + ' */)';
+      }
+      var func = 'moment';
+      var zone = '';
+      if (!this.isLocal()) {
+          func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
+          zone = 'Z';
+      }
+      var prefix = '[' + func + '("]';
+      var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
+      var datetime = '-MM-DD[T]HH:mm:ss.SSS';
+      var suffix = zone + '[")]';
+
+      return this.format(prefix + year + datetime + suffix);
+  }
+
+  function format (inputString) {
+      if (!inputString) {
+          inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
+      }
+      var output = formatMoment(this, inputString);
+      return this.localeData().postformat(output);
+  }
+
+  function from (time, withoutSuffix) {
+      if (this.isValid() &&
+              ((isMoment(time) && time.isValid()) ||
+               createLocal(time).isValid())) {
+          return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
+      } else {
+          return this.localeData().invalidDate();
+      }
+  }
+
+  function fromNow (withoutSuffix) {
+      return this.from(createLocal(), withoutSuffix);
+  }
+
+  function to (time, withoutSuffix) {
+      if (this.isValid() &&
+              ((isMoment(time) && time.isValid()) ||
+               createLocal(time).isValid())) {
+          return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
+      } else {
+          return this.localeData().invalidDate();
+      }
+  }
+
+  function toNow (withoutSuffix) {
+      return this.to(createLocal(), withoutSuffix);
+  }
+
+  // If passed a locale key, it will set the locale for this
+  // instance.  Otherwise, it will return the locale configuration
+  // variables for this instance.
+  function locale (key) {
+      var newLocaleData;
+
+      if (key === undefined) {
+          return this._locale._abbr;
+      } else {
+          newLocaleData = getLocale(key);
+          if (newLocaleData != null) {
+              this._locale = newLocaleData;
+          }
+          return this;
+      }
+  }
+
+  var lang = deprecate(
+      'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
+      function (key) {
+          if (key === undefined) {
+              return this.localeData();
+          } else {
+              return this.locale(key);
+          }
+      }
+  );
+
+  function localeData () {
+      return this._locale;
+  }
+
+  var MS_PER_SECOND = 1000;
+  var MS_PER_MINUTE = 60 * MS_PER_SECOND;
+  var MS_PER_HOUR = 60 * MS_PER_MINUTE;
+  var MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;
+
+  // actual modulo - handles negative numbers (for dates before 1970):
+  function mod$1(dividend, divisor) {
+      return (dividend % divisor + divisor) % divisor;
+  }
+
+  function localStartOfDate(y, m, d) {
+      // the date constructor remaps years 0-99 to 1900-1999
+      if (y < 100 && y >= 0) {
+          // preserve leap years using a full 400 year cycle, then reset
+          return new Date(y + 400, m, d) - MS_PER_400_YEARS;
+      } else {
+          return new Date(y, m, d).valueOf();
+      }
+  }
+
+  function utcStartOfDate(y, m, d) {
+      // Date.UTC remaps years 0-99 to 1900-1999
+      if (y < 100 && y >= 0) {
+          // preserve leap years using a full 400 year cycle, then reset
+          return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
+      } else {
+          return Date.UTC(y, m, d);
+      }
+  }
+
+  function startOf (units) {
+      var time;
+      units = normalizeUnits(units);
+      if (units === undefined || units === 'millisecond' || !this.isValid()) {
+          return this;
+      }
+
+      var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+      switch (units) {
+          case 'year':
+              time = startOfDate(this.year(), 0, 1);
+              break;
+          case 'quarter':
+              time = startOfDate(this.year(), this.month() - this.month() % 3, 1);
+              break;
+          case 'month':
+              time = startOfDate(this.year(), this.month(), 1);
+              break;
+          case 'week':
+              time = startOfDate(this.year(), this.month(), this.date() - this.weekday());
+              break;
+          case 'isoWeek':
+              time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1));
+              break;
+          case 'day':
+          case 'date':
+              time = startOfDate(this.year(), this.month(), this.date());
+              break;
+          case 'hour':
+              time = this._d.valueOf();
+              time -= mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR);
+              break;
+          case 'minute':
+              time = this._d.valueOf();
+              time -= mod$1(time, MS_PER_MINUTE);
+              break;
+          case 'second':
+              time = this._d.valueOf();
+              time -= mod$1(time, MS_PER_SECOND);
+              break;
+      }
+
+      this._d.setTime(time);
+      hooks.updateOffset(this, true);
+      return this;
+  }
+
+  function endOf (units) {
+      var time;
+      units = normalizeUnits(units);
+      if (units === undefined || units === 'millisecond' || !this.isValid()) {
+          return this;
+      }
+
+      var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+      switch (units) {
+          case 'year':
+              time = startOfDate(this.year() + 1, 0, 1) - 1;
+              break;
+          case 'quarter':
+              time = startOfDate(this.year(), this.month() - this.month() % 3 + 3, 1) - 1;
+              break;
+          case 'month':
+              time = startOfDate(this.year(), this.month() + 1, 1) - 1;
+              break;
+          case 'week':
+              time = startOfDate(this.year(), this.month(), this.date() - this.weekday() + 7) - 1;
+              break;
+          case 'isoWeek':
+              time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1) + 7) - 1;
+              break;
+          case 'day':
+          case 'date':
+              time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
+              break;
+          case 'hour':
+              time = this._d.valueOf();
+              time += MS_PER_HOUR - mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR) - 1;
+              break;
+          case 'minute':
+              time = this._d.valueOf();
+              time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
+              break;
+          case 'second':
+              time = this._d.valueOf();
+              time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
+              break;
+      }
+
+      this._d.setTime(time);
+      hooks.updateOffset(this, true);
+      return this;
+  }
+
+  function valueOf () {
+      return this._d.valueOf() - ((this._offset || 0) * 60000);
+  }
+
+  function unix () {
+      return Math.floor(this.valueOf() / 1000);
+  }
+
+  function toDate () {
+      return new Date(this.valueOf());
+  }
+
+  function toArray () {
+      var m = this;
+      return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
+  }
+
+  function toObject () {
+      var m = this;
+      return {
+          years: m.year(),
+          months: m.month(),
+          date: m.date(),
+          hours: m.hours(),
+          minutes: m.minutes(),
+          seconds: m.seconds(),
+          milliseconds: m.milliseconds()
+      };
+  }
+
+  function toJSON () {
+      // new Date(NaN).toJSON() === null
+      return this.isValid() ? this.toISOString() : null;
+  }
+
+  function isValid$2 () {
+      return isValid(this);
+  }
+
+  function parsingFlags () {
+      return extend({}, getParsingFlags(this));
+  }
+
+  function invalidAt () {
+      return getParsingFlags(this).overflow;
+  }
+
+  function creationData() {
+      return {
+          input: this._i,
+          format: this._f,
+          locale: this._locale,
+          isUTC: this._isUTC,
+          strict: this._strict
+      };
+  }
+
+  // FORMATTING
+
+  addFormatToken(0, ['gg', 2], 0, function () {
+      return this.weekYear() % 100;
+  });
+
+  addFormatToken(0, ['GG', 2], 0, function () {
+      return this.isoWeekYear() % 100;
+  });
+
+  function addWeekYearFormatToken (token, getter) {
+      addFormatToken(0, [token, token.length], 0, getter);
+  }
+
+  addWeekYearFormatToken('gggg',     'weekYear');
+  addWeekYearFormatToken('ggggg',    'weekYear');
+  addWeekYearFormatToken('GGGG',  'isoWeekYear');
+  addWeekYearFormatToken('GGGGG', 'isoWeekYear');
+
+  // ALIASES
+
+  addUnitAlias('weekYear', 'gg');
+  addUnitAlias('isoWeekYear', 'GG');
+
+  // PRIORITY
+
+  addUnitPriority('weekYear', 1);
+  addUnitPriority('isoWeekYear', 1);
+
+
+  // PARSING
+
+  addRegexToken('G',      matchSigned);
+  addRegexToken('g',      matchSigned);
+  addRegexToken('GG',     match1to2, match2);
+  addRegexToken('gg',     match1to2, match2);
+  addRegexToken('GGGG',   match1to4, match4);
+  addRegexToken('gggg',   match1to4, match4);
+  addRegexToken('GGGGG',  match1to6, match6);
+  addRegexToken('ggggg',  match1to6, match6);
+
+  addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
+      week[token.substr(0, 2)] = toInt(input);
+  });
+
+  addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
+      week[token] = hooks.parseTwoDigitYear(input);
+  });
+
+  // MOMENTS
+
+  function getSetWeekYear (input) {
+      return getSetWeekYearHelper.call(this,
+              input,
+              this.week(),
+              this.weekday(),
+              this.localeData()._week.dow,
+              this.localeData()._week.doy);
+  }
+
+  function getSetISOWeekYear (input) {
+      return getSetWeekYearHelper.call(this,
+              input, this.isoWeek(), this.isoWeekday(), 1, 4);
+  }
+
+  function getISOWeeksInYear () {
+      return weeksInYear(this.year(), 1, 4);
+  }
+
+  function getWeeksInYear () {
+      var weekInfo = this.localeData()._week;
+      return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
+  }
+
+  function getSetWeekYearHelper(input, week, weekday, dow, doy) {
+      var weeksTarget;
+      if (input == null) {
+          return weekOfYear(this, dow, doy).year;
+      } else {
+          weeksTarget = weeksInYear(input, dow, doy);
+          if (week > weeksTarget) {
+              week = weeksTarget;
+          }
+          return setWeekAll.call(this, input, week, weekday, dow, doy);
+      }
+  }
+
+  function setWeekAll(weekYear, week, weekday, dow, doy) {
+      var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
+          date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
+
+      this.year(date.getUTCFullYear());
+      this.month(date.getUTCMonth());
+      this.date(date.getUTCDate());
+      return this;
+  }
+
+  // FORMATTING
+
+  addFormatToken('Q', 0, 'Qo', 'quarter');
+
+  // ALIASES
+
+  addUnitAlias('quarter', 'Q');
+
+  // PRIORITY
+
+  addUnitPriority('quarter', 7);
+
+  // PARSING
+
+  addRegexToken('Q', match1);
+  addParseToken('Q', function (input, array) {
+      array[MONTH] = (toInt(input) - 1) * 3;
+  });
+
+  // MOMENTS
+
+  function getSetQuarter (input) {
+      return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
+  }
+
+  // FORMATTING
+
+  addFormatToken('D', ['DD', 2], 'Do', 'date');
+
+  // ALIASES
+
+  addUnitAlias('date', 'D');
+
+  // PRIORITY
+  addUnitPriority('date', 9);
+
+  // PARSING
+
+  addRegexToken('D',  match1to2);
+  addRegexToken('DD', match1to2, match2);
+  addRegexToken('Do', function (isStrict, locale) {
+      // TODO: Remove "ordinalParse" fallback in next major release.
+      return isStrict ?
+        (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
+        locale._dayOfMonthOrdinalParseLenient;
+  });
+
+  addParseToken(['D', 'DD'], DATE);
+  addParseToken('Do', function (input, array) {
+      array[DATE] = toInt(input.match(match1to2)[0]);
+  });
+
+  // MOMENTS
+
+  var getSetDayOfMonth = makeGetSet('Date', true);
+
+  // FORMATTING
+
+  addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');
+
+  // ALIASES
+
+  addUnitAlias('dayOfYear', 'DDD');
+
+  // PRIORITY
+  addUnitPriority('dayOfYear', 4);
+
+  // PARSING
+
+  addRegexToken('DDD',  match1to3);
+  addRegexToken('DDDD', match3);
+  addParseToken(['DDD', 'DDDD'], function (input, array, config) {
+      config._dayOfYear = toInt(input);
+  });
+
+  // HELPERS
+
+  // MOMENTS
+
+  function getSetDayOfYear (input) {
+      var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
+      return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
+  }
+
+  // FORMATTING
+
+  addFormatToken('m', ['mm', 2], 0, 'minute');
+
+  // ALIASES
+
+  addUnitAlias('minute', 'm');
+
+  // PRIORITY
+
+  addUnitPriority('minute', 14);
+
+  // PARSING
+
+  addRegexToken('m',  match1to2);
+  addRegexToken('mm', match1to2, match2);
+  addParseToken(['m', 'mm'], MINUTE);
+
+  // MOMENTS
+
+  var getSetMinute = makeGetSet('Minutes', false);
+
+  // FORMATTING
+
+  addFormatToken('s', ['ss', 2], 0, 'second');
+
+  // ALIASES
+
+  addUnitAlias('second', 's');
+
+  // PRIORITY
+
+  addUnitPriority('second', 15);
+
+  // PARSING
+
+  addRegexToken('s',  match1to2);
+  addRegexToken('ss', match1to2, match2);
+  addParseToken(['s', 'ss'], SECOND);
+
+  // MOMENTS
+
+  var getSetSecond = makeGetSet('Seconds', false);
+
+  // FORMATTING
+
+  addFormatToken('S', 0, 0, function () {
+      return ~~(this.millisecond() / 100);
+  });
+
+  addFormatToken(0, ['SS', 2], 0, function () {
+      return ~~(this.millisecond() / 10);
+  });
+
+  addFormatToken(0, ['SSS', 3], 0, 'millisecond');
+  addFormatToken(0, ['SSSS', 4], 0, function () {
+      return this.millisecond() * 10;
+  });
+  addFormatToken(0, ['SSSSS', 5], 0, function () {
+      return this.millisecond() * 100;
+  });
+  addFormatToken(0, ['SSSSSS', 6], 0, function () {
+      return this.millisecond() * 1000;
+  });
+  addFormatToken(0, ['SSSSSSS', 7], 0, function () {
+      return this.millisecond() * 10000;
+  });
+  addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
+      return this.millisecond() * 100000;
+  });
+  addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
+      return this.millisecond() * 1000000;
+  });
+
+
+  // ALIASES
+
+  addUnitAlias('millisecond', 'ms');
+
+  // PRIORITY
+
+  addUnitPriority('millisecond', 16);
+
+  // PARSING
+
+  addRegexToken('S',    match1to3, match1);
+  addRegexToken('SS',   match1to3, match2);
+  addRegexToken('SSS',  match1to3, match3);
+
+  var token;
+  for (token = 'SSSS'; token.length <= 9; token += 'S') {
+      addRegexToken(token, matchUnsigned);
+  }
+
+  function parseMs(input, array) {
+      array[MILLISECOND] = toInt(('0.' + input) * 1000);
+  }
+
+  for (token = 'S'; token.length <= 9; token += 'S') {
+      addParseToken(token, parseMs);
+  }
+  // MOMENTS
+
+  var getSetMillisecond = makeGetSet('Milliseconds', false);
+
+  // FORMATTING
+
+  addFormatToken('z',  0, 0, 'zoneAbbr');
+  addFormatToken('zz', 0, 0, 'zoneName');
+
+  // MOMENTS
+
+  function getZoneAbbr () {
+      return this._isUTC ? 'UTC' : '';
+  }
+
+  function getZoneName () {
+      return this._isUTC ? 'Coordinated Universal Time' : '';
+  }
+
+  var proto = Moment.prototype;
+
+  proto.add               = add;
+  proto.calendar          = calendar$1;
+  proto.clone             = clone;
+  proto.diff              = diff;
+  proto.endOf             = endOf;
+  proto.format            = format;
+  proto.from              = from;
+  proto.fromNow           = fromNow;
+  proto.to                = to;
+  proto.toNow             = toNow;
+  proto.get               = stringGet;
+  proto.invalidAt         = invalidAt;
+  proto.isAfter           = isAfter;
+  proto.isBefore          = isBefore;
+  proto.isBetween         = isBetween;
+  proto.isSame            = isSame;
+  proto.isSameOrAfter     = isSameOrAfter;
+  proto.isSameOrBefore    = isSameOrBefore;
+  proto.isValid           = isValid$2;
+  proto.lang              = lang;
+  proto.locale            = locale;
+  proto.localeData        = localeData;
+  proto.max               = prototypeMax;
+  proto.min               = prototypeMin;
+  proto.parsingFlags      = parsingFlags;
+  proto.set               = stringSet;
+  proto.startOf           = startOf;
+  proto.subtract          = subtract;
+  proto.toArray           = toArray;
+  proto.toObject          = toObject;
+  proto.toDate            = toDate;
+  proto.toISOString       = toISOString;
+  proto.inspect           = inspect;
+  proto.toJSON            = toJSON;
+  proto.toString          = toString;
+  proto.unix              = unix;
+  proto.valueOf           = valueOf;
+  proto.creationData      = creationData;
+  proto.year       = getSetYear;
+  proto.isLeapYear = getIsLeapYear;
+  proto.weekYear    = getSetWeekYear;
+  proto.isoWeekYear = getSetISOWeekYear;
+  proto.quarter = proto.quarters = getSetQuarter;
+  proto.month       = getSetMonth;
+  proto.daysInMonth = getDaysInMonth;
+  proto.week           = proto.weeks        = getSetWeek;
+  proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
+  proto.weeksInYear    = getWeeksInYear;
+  proto.isoWeeksInYear = getISOWeeksInYear;
+  proto.date       = getSetDayOfMonth;
+  proto.day        = proto.days             = getSetDayOfWeek;
+  proto.weekday    = getSetLocaleDayOfWeek;
+  proto.isoWeekday = getSetISODayOfWeek;
+  proto.dayOfYear  = getSetDayOfYear;
+  proto.hour = proto.hours = getSetHour;
+  proto.minute = proto.minutes = getSetMinute;
+  proto.second = proto.seconds = getSetSecond;
+  proto.millisecond = proto.milliseconds = getSetMillisecond;
+  proto.utcOffset            = getSetOffset;
+  proto.utc                  = setOffsetToUTC;
+  proto.local                = setOffsetToLocal;
+  proto.parseZone            = setOffsetToParsedOffset;
+  proto.hasAlignedHourOffset = hasAlignedHourOffset;
+  proto.isDST                = isDaylightSavingTime;
+  proto.isLocal              = isLocal;
+  proto.isUtcOffset          = isUtcOffset;
+  proto.isUtc                = isUtc;
+  proto.isUTC                = isUtc;
+  proto.zoneAbbr = getZoneAbbr;
+  proto.zoneName = getZoneName;
+  proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
+  proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
+  proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
+  proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
+  proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);
+
+  function createUnix (input) {
+      return createLocal(input * 1000);
+  }
+
+  function createInZone () {
+      return createLocal.apply(null, arguments).parseZone();
+  }
+
+  function preParsePostFormat (string) {
+      return string;
+  }
+
+  var proto$1 = Locale.prototype;
+
+  proto$1.calendar        = calendar;
+  proto$1.longDateFormat  = longDateFormat;
+  proto$1.invalidDate     = invalidDate;
+  proto$1.ordinal         = ordinal;
+  proto$1.preparse        = preParsePostFormat;
+  proto$1.postformat      = preParsePostFormat;
+  proto$1.relativeTime    = relativeTime;
+  proto$1.pastFuture      = pastFuture;
+  proto$1.set             = set;
+
+  proto$1.months            =        localeMonths;
+  proto$1.monthsShort       =        localeMonthsShort;
+  proto$1.monthsParse       =        localeMonthsParse;
+  proto$1.monthsRegex       = monthsRegex;
+  proto$1.monthsShortRegex  = monthsShortRegex;
+  proto$1.week = localeWeek;
+  proto$1.firstDayOfYear = localeFirstDayOfYear;
+  proto$1.firstDayOfWeek = localeFirstDayOfWeek;
+
+  proto$1.weekdays       =        localeWeekdays;
+  proto$1.weekdaysMin    =        localeWeekdaysMin;
+  proto$1.weekdaysShort  =        localeWeekdaysShort;
+  proto$1.weekdaysParse  =        localeWeekdaysParse;
+
+  proto$1.weekdaysRegex       =        weekdaysRegex;
+  proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
+  proto$1.weekdaysMinRegex    =        weekdaysMinRegex;
+
+  proto$1.isPM = localeIsPM;
+  proto$1.meridiem = localeMeridiem;
+
+  function get$1 (format, index, field, setter) {
+      var locale = getLocale();
+      var utc = createUTC().set(setter, index);
+      return locale[field](utc, format);
+  }
+
+  function listMonthsImpl (format, index, field) {
+      if (isNumber(format)) {
+          index = format;
+          format = undefined;
+      }
+
+      format = format || '';
+
+      if (index != null) {
+          return get$1(format, index, field, 'month');
+      }
+
+      var i;
+      var out = [];
+      for (i = 0; i < 12; i++) {
+          out[i] = get$1(format, i, field, 'month');
+      }
+      return out;
+  }
+
+  // ()
+  // (5)
+  // (fmt, 5)
+  // (fmt)
+  // (true)
+  // (true, 5)
+  // (true, fmt, 5)
+  // (true, fmt)
+  function listWeekdaysImpl (localeSorted, format, index, field) {
+      if (typeof localeSorted === 'boolean') {
+          if (isNumber(format)) {
+              index = format;
+              format = undefined;
+          }
+
+          format = format || '';
+      } else {
+          format = localeSorted;
+          index = format;
+          localeSorted = false;
+
+          if (isNumber(format)) {
+              index = format;
+              format = undefined;
+          }
+
+          format = format || '';
+      }
+
+      var locale = getLocale(),
+          shift = localeSorted ? locale._week.dow : 0;
+
+      if (index != null) {
+          return get$1(format, (index + shift) % 7, field, 'day');
+      }
+
+      var i;
+      var out = [];
+      for (i = 0; i < 7; i++) {
+          out[i] = get$1(format, (i + shift) % 7, field, 'day');
+      }
+      return out;
+  }
+
+  function listMonths (format, index) {
+      return listMonthsImpl(format, index, 'months');
+  }
+
+  function listMonthsShort (format, index) {
+      return listMonthsImpl(format, index, 'monthsShort');
+  }
+
+  function listWeekdays (localeSorted, format, index) {
+      return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
+  }
+
+  function listWeekdaysShort (localeSorted, format, index) {
+      return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
+  }
+
+  function listWeekdaysMin (localeSorted, format, index) {
+      return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
+  }
+
+  getSetGlobalLocale('en', {
+      dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+      ordinal : function (number) {
+          var b = number % 10,
+              output = (toInt(number % 100 / 10) === 1) ? 'th' :
+              (b === 1) ? 'st' :
+              (b === 2) ? 'nd' :
+              (b === 3) ? 'rd' : 'th';
+          return number + output;
+      }
+  });
+
+  // Side effect imports
+
+  hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
+  hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);
+
+  var mathAbs = Math.abs;
+
+  function abs () {
+      var data           = this._data;
+
+      this._milliseconds = mathAbs(this._milliseconds);
+      this._days         = mathAbs(this._days);
+      this._months       = mathAbs(this._months);
+
+      data.milliseconds  = mathAbs(data.milliseconds);
+      data.seconds       = mathAbs(data.seconds);
+      data.minutes       = mathAbs(data.minutes);
+      data.hours         = mathAbs(data.hours);
+      data.months        = mathAbs(data.months);
+      data.years         = mathAbs(data.years);
+
+      return this;
+  }
+
+  function addSubtract$1 (duration, input, value, direction) {
+      var other = createDuration(input, value);
+
+      duration._milliseconds += direction * other._milliseconds;
+      duration._days         += direction * other._days;
+      duration._months       += direction * other._months;
+
+      return duration._bubble();
+  }
+
+  // supports only 2.0-style add(1, 's') or add(duration)
+  function add$1 (input, value) {
+      return addSubtract$1(this, input, value, 1);
+  }
+
+  // supports only 2.0-style subtract(1, 's') or subtract(duration)
+  function subtract$1 (input, value) {
+      return addSubtract$1(this, input, value, -1);
+  }
+
+  function absCeil (number) {
+      if (number < 0) {
+          return Math.floor(number);
+      } else {
+          return Math.ceil(number);
+      }
+  }
+
+  function bubble () {
+      var milliseconds = this._milliseconds;
+      var days         = this._days;
+      var months       = this._months;
+      var data         = this._data;
+      var seconds, minutes, hours, years, monthsFromDays;
+
+      // if we have a mix of positive and negative values, bubble down first
+      // check: https://github.com/moment/moment/issues/2166
+      if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
+              (milliseconds <= 0 && days <= 0 && months <= 0))) {
+          milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
+          days = 0;
+          months = 0;
+      }
+
+      // The following code bubbles up values, see the tests for
+      // examples of what that means.
+      data.milliseconds = milliseconds % 1000;
+
+      seconds           = absFloor(milliseconds / 1000);
+      data.seconds      = seconds % 60;
+
+      minutes           = absFloor(seconds / 60);
+      data.minutes      = minutes % 60;
+
+      hours             = absFloor(minutes / 60);
+      data.hours        = hours % 24;
+
+      days += absFloor(hours / 24);
+
+      // convert days to months
+      monthsFromDays = absFloor(daysToMonths(days));
+      months += monthsFromDays;
+      days -= absCeil(monthsToDays(monthsFromDays));
+
+      // 12 months -> 1 year
+      years = absFloor(months / 12);
+      months %= 12;
+
+      data.days   = days;
+      data.months = months;
+      data.years  = years;
+
+      return this;
+  }
+
+  function daysToMonths (days) {
+      // 400 years have 146097 days (taking into account leap year rules)
+      // 400 years have 12 months === 4800
+      return days * 4800 / 146097;
+  }
+
+  function monthsToDays (months) {
+      // the reverse of daysToMonths
+      return months * 146097 / 4800;
+  }
+
+  function as (units) {
+      if (!this.isValid()) {
+          return NaN;
+      }
+      var days;
+      var months;
+      var milliseconds = this._milliseconds;
+
+      units = normalizeUnits(units);
+
+      if (units === 'month' || units === 'quarter' || units === 'year') {
+          days = this._days + milliseconds / 864e5;
+          months = this._months + daysToMonths(days);
+          switch (units) {
+              case 'month':   return months;
+              case 'quarter': return months / 3;
+              case 'year':    return months / 12;
+          }
+      } else {
+          // handle milliseconds separately because of floating point math errors (issue #1867)
+          days = this._days + Math.round(monthsToDays(this._months));
+          switch (units) {
+              case 'week'   : return days / 7     + milliseconds / 6048e5;
+              case 'day'    : return days         + milliseconds / 864e5;
+              case 'hour'   : return days * 24    + milliseconds / 36e5;
+              case 'minute' : return days * 1440  + milliseconds / 6e4;
+              case 'second' : return days * 86400 + milliseconds / 1000;
+              // Math.floor prevents floating point math errors here
+              case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
+              default: throw new Error('Unknown unit ' + units);
+          }
+      }
+  }
+
+  // TODO: Use this.as('ms')?
+  function valueOf$1 () {
+      if (!this.isValid()) {
+          return NaN;
+      }
+      return (
+          this._milliseconds +
+          this._days * 864e5 +
+          (this._months % 12) * 2592e6 +
+          toInt(this._months / 12) * 31536e6
+      );
+  }
+
+  function makeAs (alias) {
+      return function () {
+          return this.as(alias);
+      };
+  }
+
+  var asMilliseconds = makeAs('ms');
+  var asSeconds      = makeAs('s');
+  var asMinutes      = makeAs('m');
+  var asHours        = makeAs('h');
+  var asDays         = makeAs('d');
+  var asWeeks        = makeAs('w');
+  var asMonths       = makeAs('M');
+  var asQuarters     = makeAs('Q');
+  var asYears        = makeAs('y');
+
+  function clone$1 () {
+      return createDuration(this);
+  }
+
+  function get$2 (units) {
+      units = normalizeUnits(units);
+      return this.isValid() ? this[units + 's']() : NaN;
+  }
+
+  function makeGetter(name) {
+      return function () {
+          return this.isValid() ? this._data[name] : NaN;
+      };
+  }
+
+  var milliseconds = makeGetter('milliseconds');
+  var seconds      = makeGetter('seconds');
+  var minutes      = makeGetter('minutes');
+  var hours        = makeGetter('hours');
+  var days         = makeGetter('days');
+  var months       = makeGetter('months');
+  var years        = makeGetter('years');
+
+  function weeks () {
+      return absFloor(this.days() / 7);
+  }
+
+  var round = Math.round;
+  var thresholds = {
+      ss: 44,         // a few seconds to seconds
+      s : 45,         // seconds to minute
+      m : 45,         // minutes to hour
+      h : 22,         // hours to day
+      d : 26,         // days to month
+      M : 11          // months to year
+  };
+
+  // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
+  function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
+      return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
+  }
+
+  function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
+      var duration = createDuration(posNegDuration).abs();
+      var seconds  = round(duration.as('s'));
+      var minutes  = round(duration.as('m'));
+      var hours    = round(duration.as('h'));
+      var days     = round(duration.as('d'));
+      var months   = round(duration.as('M'));
+      var years    = round(duration.as('y'));
+
+      var a = seconds <= thresholds.ss && ['s', seconds]  ||
+              seconds < thresholds.s   && ['ss', seconds] ||
+              minutes <= 1             && ['m']           ||
+              minutes < thresholds.m   && ['mm', minutes] ||
+              hours   <= 1             && ['h']           ||
+              hours   < thresholds.h   && ['hh', hours]   ||
+              days    <= 1             && ['d']           ||
+              days    < thresholds.d   && ['dd', days]    ||
+              months  <= 1             && ['M']           ||
+              months  < thresholds.M   && ['MM', months]  ||
+              years   <= 1             && ['y']           || ['yy', years];
+
+      a[2] = withoutSuffix;
+      a[3] = +posNegDuration > 0;
+      a[4] = locale;
+      return substituteTimeAgo.apply(null, a);
+  }
+
+  // This function allows you to set the rounding function for relative time strings
+  function getSetRelativeTimeRounding (roundingFunction) {
+      if (roundingFunction === undefined) {
+          return round;
+      }
+      if (typeof(roundingFunction) === 'function') {
+          round = roundingFunction;
+          return true;
+      }
+      return false;
+  }
+
+  // This function allows you to set a threshold for relative time strings
+  function getSetRelativeTimeThreshold (threshold, limit) {
+      if (thresholds[threshold] === undefined) {
+          return false;
+      }
+      if (limit === undefined) {
+          return thresholds[threshold];
+      }
+      thresholds[threshold] = limit;
+      if (threshold === 's') {
+          thresholds.ss = limit - 1;
+      }
+      return true;
+  }
+
+  function humanize (withSuffix) {
+      if (!this.isValid()) {
+          return this.localeData().invalidDate();
+      }
+
+      var locale = this.localeData();
+      var output = relativeTime$1(this, !withSuffix, locale);
+
+      if (withSuffix) {
+          output = locale.pastFuture(+this, output);
+      }
+
+      return locale.postformat(output);
+  }
+
+  var abs$1 = Math.abs;
+
+  function sign(x) {
+      return ((x > 0) - (x < 0)) || +x;
+  }
+
+  function toISOString$1() {
+      // for ISO strings we do not use the normal bubbling rules:
+      //  * milliseconds bubble up until they become hours
+      //  * days do not bubble at all
+      //  * months bubble up until they become years
+      // This is because there is no context-free conversion between hours and days
+      // (think of clock changes)
+      // and also not between days and months (28-31 days per month)
+      if (!this.isValid()) {
+          return this.localeData().invalidDate();
+      }
+
+      var seconds = abs$1(this._milliseconds) / 1000;
+      var days         = abs$1(this._days);
+      var months       = abs$1(this._months);
+      var minutes, hours, years;
+
+      // 3600 seconds -> 60 minutes -> 1 hour
+      minutes           = absFloor(seconds / 60);
+      hours             = absFloor(minutes / 60);
+      seconds %= 60;
+      minutes %= 60;
+
+      // 12 months -> 1 year
+      years  = absFloor(months / 12);
+      months %= 12;
+
+
+      // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
+      var Y = years;
+      var M = months;
+      var D = days;
+      var h = hours;
+      var m = minutes;
+      var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
+      var total = this.asSeconds();
+
+      if (!total) {
+          // this is the same as C#'s (Noda) and python (isodate)...
+          // but not other JS (goog.date)
+          return 'P0D';
+      }
+
+      var totalSign = total < 0 ? '-' : '';
+      var ymSign = sign(this._months) !== sign(total) ? '-' : '';
+      var daysSign = sign(this._days) !== sign(total) ? '-' : '';
+      var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
+
+      return totalSign + 'P' +
+          (Y ? ymSign + Y + 'Y' : '') +
+          (M ? ymSign + M + 'M' : '') +
+          (D ? daysSign + D + 'D' : '') +
+          ((h || m || s) ? 'T' : '') +
+          (h ? hmsSign + h + 'H' : '') +
+          (m ? hmsSign + m + 'M' : '') +
+          (s ? hmsSign + s + 'S' : '');
+  }
+
+  var proto$2 = Duration.prototype;
+
+  proto$2.isValid        = isValid$1;
+  proto$2.abs            = abs;
+  proto$2.add            = add$1;
+  proto$2.subtract       = subtract$1;
+  proto$2.as             = as;
+  proto$2.asMilliseconds = asMilliseconds;
+  proto$2.asSeconds      = asSeconds;
+  proto$2.asMinutes      = asMinutes;
+  proto$2.asHours        = asHours;
+  proto$2.asDays         = asDays;
+  proto$2.asWeeks        = asWeeks;
+  proto$2.asMonths       = asMonths;
+  proto$2.asQuarters     = asQuarters;
+  proto$2.asYears        = asYears;
+  proto$2.valueOf        = valueOf$1;
+  proto$2._bubble        = bubble;
+  proto$2.clone          = clone$1;
+  proto$2.get            = get$2;
+  proto$2.milliseconds   = milliseconds;
+  proto$2.seconds        = seconds;
+  proto$2.minutes        = minutes;
+  proto$2.hours          = hours;
+  proto$2.days           = days;
+  proto$2.weeks          = weeks;
+  proto$2.months         = months;
+  proto$2.years          = years;
+  proto$2.humanize       = humanize;
+  proto$2.toISOString    = toISOString$1;
+  proto$2.toString       = toISOString$1;
+  proto$2.toJSON         = toISOString$1;
+  proto$2.locale         = locale;
+  proto$2.localeData     = localeData;
+
+  proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
+  proto$2.lang = lang;
+
+  // Side effect imports
+
+  // FORMATTING
+
+  addFormatToken('X', 0, 0, 'unix');
+  addFormatToken('x', 0, 0, 'valueOf');
+
+  // PARSING
+
+  addRegexToken('x', matchSigned);
+  addRegexToken('X', matchTimestamp);
+  addParseToken('X', function (input, array, config) {
+      config._d = new Date(parseFloat(input, 10) * 1000);
+  });
+  addParseToken('x', function (input, array, config) {
+      config._d = new Date(toInt(input));
+  });
+
+  // Side effect imports
+
+
+  hooks.version = '2.24.0';
+
+  setHookCallback(createLocal);
+
+  hooks.fn                    = proto;
+  hooks.min                   = min;
+  hooks.max                   = max;
+  hooks.now                   = now;
+  hooks.utc                   = createUTC;
+  hooks.unix                  = createUnix;
+  hooks.months                = listMonths;
+  hooks.isDate                = isDate;
+  hooks.locale                = getSetGlobalLocale;
+  hooks.invalid               = createInvalid;
+  hooks.duration              = createDuration;
+  hooks.isMoment              = isMoment;
+  hooks.weekdays              = listWeekdays;
+  hooks.parseZone             = createInZone;
+  hooks.localeData            = getLocale;
+  hooks.isDuration            = isDuration;
+  hooks.monthsShort           = listMonthsShort;
+  hooks.weekdaysMin           = listWeekdaysMin;
+  hooks.defineLocale          = defineLocale;
+  hooks.updateLocale          = updateLocale;
+  hooks.locales               = listLocales;
+  hooks.weekdaysShort         = listWeekdaysShort;
+  hooks.normalizeUnits        = normalizeUnits;
+  hooks.relativeTimeRounding  = getSetRelativeTimeRounding;
+  hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
+  hooks.calendarFormat        = getCalendarFormat;
+  hooks.prototype             = proto;
+
+  // currently HTML5 input type only supports 24-hour formats
+  hooks.HTML5_FMT = {
+      DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm',             // <input type="datetime-local" />
+      DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss',  // <input type="datetime-local" step="1" />
+      DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS',   // <input type="datetime-local" step="0.001" />
+      DATE: 'YYYY-MM-DD',                             // <input type="date" />
+      TIME: 'HH:mm',                                  // <input type="time" />
+      TIME_SECONDS: 'HH:mm:ss',                       // <input type="time" step="1" />
+      TIME_MS: 'HH:mm:ss.SSS',                        // <input type="time" step="0.001" />
+      WEEK: 'GGGG-[W]WW',                             // <input type="week" />
+      MONTH: 'YYYY-MM'                                // <input type="month" />
+  };
+
+  return hooks;
+
+})));