// moment.js
// version : 2.1.0
// author : Tim Wood
// license : MIT
// momentjs.com

(function (undefined) {

	/************************************
	 Constants
	 ************************************/

	var moment,
		VERSION = "2.1.0",
		round = Math.round, i,
	// internal storage for language config files
		languages = {},

	// check for nodeJS
		hasModule = (typeof module !== 'undefined' && module.exports),

	// ASP.NET json date format regex
		aspNetJsonRegex = /^\/?Date\((\-?\d+)/i,
		aspNetTimeSpanJsonRegex = /(\-)?(\d*)?\.?(\d+)\:(\d+)\:(\d+)\.?(\d{3})?/,

	// format tokens
		formattingTokens = /(\[[^\[]*\])|(\\)?(Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|mm?|ss?|SS?S?|X|zz?|ZZ?|.)/g,
		localFormattingTokens = /(\[[^\[]*\])|(\\)?(LT|LL?L?L?|l{1,4})/g,

	// parsing token regexes
		parseTokenOneOrTwoDigits = /\d\d?/, // 0 - 99
		parseTokenOneToThreeDigits = /\d{1,3}/, // 0 - 999
		parseTokenThreeDigits = /\d{3}/, // 000 - 999
		parseTokenFourDigits = /\d{1,4}/, // 0 - 9999
		parseTokenSixDigits = /[+\-]?\d{1,6}/, // -999,999 - 999,999
		parseTokenWord = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i, // any word (or two) characters or numbers including two/three word month in arabic.
		parseTokenTimezone = /Z|[\+\-]\d\d:?\d\d/i, // +00:00 -00:00 +0000 -0000 or Z
		parseTokenT = /T/i, // T (ISO seperator)
		parseTokenTimestampMs = /[\+\-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123

	// preliminary iso regex
	// 0000-00-00 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000
		isoRegex = /^\s*\d{4}-\d\d-\d\d((T| )(\d\d(:\d\d(:\d\d(\.\d\d?\d?)?)?)?)?([\+\-]\d\d:?\d\d)?)?/,
		isoFormat = 'YYYY-MM-DDTHH:mm:ssZ',

	// iso time formats and regexes
		isoTimes = [
			['HH:mm:ss.S', /(T| )\d\d:\d\d:\d\d\.\d{1,3}/],
			['HH:mm:ss', /(T| )\d\d:\d\d:\d\d/],
			['HH:mm', /(T| )\d\d:\d\d/],
			['HH', /(T| )\d\d/]
		],

	// timezone chunker "+10:00" > ["10", "00"] or "-1530" > ["-15", "30"]
		parseTimezoneChunker = /([\+\-]|\d\d)/gi,

	// getter and setter names
		proxyGettersAndSetters = 'Date|Hours|Minutes|Seconds|Milliseconds'.split('|'),
		unitMillisecondFactors = {
			'Milliseconds' : 1,
			'Seconds' : 1e3,
			'Minutes' : 6e4,
			'Hours' : 36e5,
			'Days' : 864e5,
			'Months' : 2592e6,
			'Years' : 31536e6
		},

		unitAliases = {
			ms : 'millisecond',
			s : 'second',
			m : 'minute',
			h : 'hour',
			d : 'day',
			w : 'week',
			M : 'month',
			y : 'year'
		},

	// format function strings
		formatFunctions = {},

	// tokens to ordinalize and pad
		ordinalizeTokens = 'DDD w W M D d'.split(' '),
		paddedTokens = 'M D H h m s w W'.split(' '),

		formatTokenFunctions = {
			M    : function () {
				return this.month() + 1;
			},
			MMM  : function (format) {
				return this.lang().monthsShort(this, format);
			},
			MMMM : function (format) {
				return this.lang().months(this, format);
			},
			D    : function () {
				return this.date();
			},
			DDD  : function () {
				return this.dayOfYear();
			},
			d    : function () {
				return this.day();
			},
			dd   : function (format) {
				return this.lang().weekdaysMin(this, format);
			},
			ddd  : function (format) {
				return this.lang().weekdaysShort(this, format);
			},
			dddd : function (format) {
				return this.lang().weekdays(this, format);
			},
			w    : function () {
				return this.week();
			},
			W    : function () {
				return this.isoWeek();
			},
			YY   : function () {
				return leftZeroFill(this.year() % 100, 2);
			},
			YYYY : function () {
				return leftZeroFill(this.year(), 4);
			},
			YYYYY : function () {
				return leftZeroFill(this.year(), 5);
			},
			gg   : function () {
				return leftZeroFill(this.weekYear() % 100, 2);
			},
			gggg : function () {
				return this.weekYear();
			},
			ggggg : function () {
				return leftZeroFill(this.weekYear(), 5);
			},
			GG   : function () {
				return leftZeroFill(this.isoWeekYear() % 100, 2);
			},
			GGGG : function () {
				return this.isoWeekYear();
			},
			GGGGG : function () {
				return leftZeroFill(this.isoWeekYear(), 5);
			},
			e : function () {
				return this.weekday();
			},
			E : function () {
				return this.isoWeekday();
			},
			a    : function () {
				return this.lang().meridiem(this.hours(), this.minutes(), true);
			},
			A    : function () {
				return this.lang().meridiem(this.hours(), this.minutes(), false);
			},
			H    : function () {
				return this.hours();
			},
			h    : function () {
				return this.hours() % 12 || 12;
			},
			m    : function () {
				return this.minutes();
			},
			s    : function () {
				return this.seconds();
			},
			S    : function () {
				return ~~(this.milliseconds() / 100);
			},
			SS   : function () {
				return leftZeroFill(~~(this.milliseconds() / 10), 2);
			},
			SSS  : function () {
				return leftZeroFill(this.milliseconds(), 3);
			},
			Z    : function () {
				var a = -this.zone(),
					b = "+";
				if (a < 0) {
					a = -a;
					b = "-";
				}
				return b + leftZeroFill(~~(a / 60), 2) + ":" + leftZeroFill(~~a % 60, 2);
			},
			ZZ   : function () {
				var a = -this.zone(),
					b = "+";
				if (a < 0) {
					a = -a;
					b = "-";
				}
				return b + leftZeroFill(~~(10 * a / 6), 4);
			},
			z : function () {
				return this.zoneAbbr();
			},
			zz : function () {
				return this.zoneName();
			},
			X    : function () {
				return this.unix();
			}
		};

	function padToken(func, count) {
		return function (a) {
			return leftZeroFill(func.call(this, a), count);
		};
	}
	function ordinalizeToken(func, period) {
		return function (a) {
			return this.lang().ordinal(func.call(this, a), period);
		};
	}

	while (ordinalizeTokens.length) {
		i = ordinalizeTokens.pop();
		formatTokenFunctions[i + 'o'] = ordinalizeToken(formatTokenFunctions[i], i);
	}
	while (paddedTokens.length) {
		i = paddedTokens.pop();
		formatTokenFunctions[i + i] = padToken(formatTokenFunctions[i], 2);
	}
	formatTokenFunctions.DDDD = padToken(formatTokenFunctions.DDD, 3);


	/************************************
	 Constructors
	 ************************************/

	function Language() {

	}

	// Moment prototype object
	function Moment(config) {
		extend(this, config);
	}

	// Duration Constructor
	function Duration(duration) {
		var years = duration.years || duration.year || duration.y || 0,
			months = duration.months || duration.month || duration.M || 0,
			weeks = duration.weeks || duration.week || duration.w || 0,
			days = duration.days || duration.day || duration.d || 0,
			hours = duration.hours || duration.hour || duration.h || 0,
			minutes = duration.minutes || duration.minute || duration.m || 0,
			seconds = duration.seconds || duration.second || duration.s || 0,
			milliseconds = duration.milliseconds || duration.millisecond || duration.ms || 0;

		// store reference to input for deterministic cloning
		this._input = duration;

		// representation for dateAddRemove
		this._milliseconds = milliseconds +
			seconds * 1e3 + // 1000
			minutes * 6e4 + // 1000 * 60
			hours * 36e5; // 1000 * 60 * 60
		// 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 translate months into days without knowing
		// which months you are are talking about, so we have to store
		// it separately.
		this._months = months +
			years * 12;

		this._data = {};

		this._bubble();
	}


	/************************************
	 Helpers
	 ************************************/


	function extend(a, b) {
		for (var i in b) {
			if (b.hasOwnProperty(i)) {
				a[i] = b[i];
			}
		}
		return a;
	}

	function absRound(number) {
		if (number < 0) {
			return Math.ceil(number);
		} else {
			return Math.floor(number);
		}
	}

	// left zero fill a number
	// see http://jsperf.com/left-zero-filling for performance comparison
	function leftZeroFill(number, targetLength) {
		var output = number + '';
		while (output.length < targetLength) {
			output = '0' + output;
		}
		return output;
	}

	// helper function for _.addTime and _.subtractTime
	function addOrSubtractDurationFromMoment(mom, duration, isAdding, ignoreUpdateOffset) {
		var milliseconds = duration._milliseconds,
			days = duration._days,
			months = duration._months,
			minutes,
			hours,
			currentDate;

		if (milliseconds) {
			mom._d.setTime(+mom._d + milliseconds * isAdding);
		}
		// store the minutes and hours so we can restore them
		if (days || months) {
			minutes = mom.minute();
			hours = mom.hour();
		}
		if (days) {
			mom.date(mom.date() + days * isAdding);
		}
		if (months) {
			mom.month(mom.month() + months * isAdding);
		}
		if (milliseconds && !ignoreUpdateOffset) {
			moment.updateOffset(mom);
		}
		// restore the minutes and hours after possibly changing dst
		if (days || months) {
			mom.minute(minutes);
			mom.hour(hours);
		}
	}

	// check if is an array
	function isArray(input) {
		return Object.prototype.toString.call(input) === '[object Array]';
	}

	// compare two arrays, return the number of differences
	function compareArrays(array1, array2) {
		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 (~~array1[i] !== ~~array2[i]) {
				diffs++;
			}
		}
		return diffs + lengthDiff;
	}

	function normalizeUnits(units) {
		return units ? unitAliases[units] || units.toLowerCase().replace(/(.)s$/, '$1') : units;
	}


	/************************************
	 Languages
	 ************************************/


	Language.prototype = {
		set : function (config) {
			var prop, i;
			for (i in config) {
				prop = config[i];
				if (typeof prop === 'function') {
					this[i] = prop;
				} else {
					this['_' + i] = prop;
				}
			}
		},

		_months : "January_February_March_April_May_June_July_August_September_October_November_December".split("_"),
		months : function (m) {
			return this._months[m.month()];
		},

		_monthsShort : "Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec".split("_"),
		monthsShort : function (m) {
			return this._monthsShort[m.month()];
		},

		monthsParse : function (monthName) {
			var i, mom, regex;

			if (!this._monthsParse) {
				this._monthsParse = [];
			}

			for (i = 0; i < 12; i++) {
				// make the regex if we don't have it already
				if (!this._monthsParse[i]) {
					mom = moment([2000, i]);
					regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
					this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
				}
				// test the regex
				if (this._monthsParse[i].test(monthName)) {
					return i;
				}
			}
		},

		_weekdays : "Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday".split("_"),
		weekdays : function (m) {
			return this._weekdays[m.day()];
		},

		_weekdaysShort : "Sun_Mon_Tue_Wed_Thu_Fri_Sat".split("_"),
		weekdaysShort : function (m) {
			return this._weekdaysShort[m.day()];
		},

		_weekdaysMin : "Su_Mo_Tu_We_Th_Fr_Sa".split("_"),
		weekdaysMin : function (m) {
			return this._weekdaysMin[m.day()];
		},

		weekdaysParse : function (weekdayName) {
			var i, mom, regex;

			if (!this._weekdaysParse) {
				this._weekdaysParse = [];
			}

			for (i = 0; i < 7; i++) {
				// make the regex if we don't have it already
				if (!this._weekdaysParse[i]) {
					mom = moment([2000, 1]).day(i);
					regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
					this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
				}
				// test the regex
				if (this._weekdaysParse[i].test(weekdayName)) {
					return i;
				}
			}
		},

		_longDateFormat : {
			LT : "h:mm A",
			L : "MM/DD/YYYY",
			LL : "MMMM D YYYY",
			LLL : "MMMM D YYYY LT",
			LLLL : "dddd, MMMM D YYYY LT"
		},
		longDateFormat : function (key) {
			var output = this._longDateFormat[key];
			if (!output && this._longDateFormat[key.toUpperCase()]) {
				output = this._longDateFormat[key.toUpperCase()].replace(/MMMM|MM|DD|dddd/g, function (val) {
					return val.slice(1);
				});
				this._longDateFormat[key] = output;
			}
			return output;
		},

		isPM : function (input) {
			return ((input + '').toLowerCase()[0] === 'p');
		},

		_meridiemParse : /[ap]\.?m?\.?/i,
		meridiem : function (hours, minutes, isLower) {
			if (hours > 11) {
				return isLower ? 'pm' : 'PM';
			} else {
				return isLower ? 'am' : 'AM';
			}
		},

		_calendar : {
			sameDay : '[Today at] LT',
			nextDay : '[Tomorrow at] LT',
			nextWeek : 'dddd [at] LT',
			lastDay : '[Yesterday at] LT',
			lastWeek : '[Last] dddd [at] LT',
			sameElse : 'L'
		},
		calendar : function (key, mom) {
			var output = this._calendar[key];
			return typeof output === 'function' ? output.apply(mom) : output;
		},

		_relativeTime : {
			future : "in %s",
			past : "%s ago",
			s : "a few 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"
		},
		relativeTime : function (number, withoutSuffix, string, isFuture) {
			var output = this._relativeTime[string];
			return (typeof output === 'function') ?
				output(number, withoutSuffix, string, isFuture) :
				output.replace(/%d/i, number);
		},
		pastFuture : function (diff, output) {
			var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
			return typeof format === 'function' ? format(output) : format.replace(/%s/i, output);
		},

		ordinal : function (number) {
			return this._ordinal.replace("%d", number);
		},
		_ordinal : "%d",

		preparse : function (string) {
			return string;
		},

		postformat : function (string) {
			return string;
		},

		week : function (mom) {
			return weekOfYear(mom, this._week.dow, this._week.doy).week;
		},
		_week : {
			dow : 0, // Sunday is the first day of the week.
			doy : 6  // The week that contains Jan 1st is the first week of the year.
		}
	};

	// Loads a language definition into the `languages` cache.  The function
	// takes a key and optionally values.  If not in the browser and no values
	// are provided, it will load the language file module.  As a convenience,
	// this function also returns the language values.
	function loadLang(key, values) {
		values.abbr = key;
		if (!languages[key]) {
			languages[key] = new Language();
		}
		languages[key].set(values);
		return languages[key];
	}

	// Determines which language definition to use and returns it.
	//
	// With no parameters, it will return the global language.  If you
	// pass in a language key, such as 'en', it will return the
	// definition for 'en', so long as 'en' has already been loaded using
	// moment.lang.
	function getLangDefinition(key) {
		if (!key) {
			return moment.fn._lang;
		}
		if (!languages[key] && hasModule) {
			try {
				require('./lang/' + key);
			} catch (e) {
				// call with no params to set to default
				return moment.fn._lang;
			}
		}
		return languages[key];
	}


	/************************************
	 Formatting
	 ************************************/


	function removeFormattingTokens(input) {
		if (input.match(/\[.*\]/)) {
			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 = "";
			for (i = 0; i < length; i++) {
				output += array[i] instanceof Function ? array[i].call(mom, format) : array[i];
			}
			return output;
		};
	}

	// format date using native date object
	function formatMoment(m, format) {
		var i = 5;

		function replaceLongDateFormatTokens(input) {
			return m.lang().longDateFormat(input) || input;
		}

		while (i-- && localFormattingTokens.test(format)) {
			format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
		}

		if (!formatFunctions[format]) {
			formatFunctions[format] = makeFormatFunction(format);
		}

		return formatFunctions[format](m);
	}


	/************************************
	 Parsing
	 ************************************/


		// get the regex to find the next token
	function getParseRegexForToken(token, config) {
		switch (token) {
			case 'DDDD':
				return parseTokenThreeDigits;
			case 'YYYY':
				return parseTokenFourDigits;
			case 'YYYYY':
				return parseTokenSixDigits;
			case 'S':
			case 'SS':
			case 'SSS':
			case 'DDD':
				return parseTokenOneToThreeDigits;
			case 'MMM':
			case 'MMMM':
			case 'dd':
			case 'ddd':
			case 'dddd':
				return parseTokenWord;
			case 'a':
			case 'A':
				return getLangDefinition(config._l)._meridiemParse;
			case 'X':
				return parseTokenTimestampMs;
			case 'Z':
			case 'ZZ':
				return parseTokenTimezone;
			case 'T':
				return parseTokenT;
			case 'MM':
			case 'DD':
			case 'YY':
			case 'HH':
			case 'hh':
			case 'mm':
			case 'ss':
			case 'M':
			case 'D':
			case 'd':
			case 'H':
			case 'h':
			case 'm':
			case 's':
				return parseTokenOneOrTwoDigits;
			default :
				return new RegExp(token.replace('\\', ''));
		}
	}

	function timezoneMinutesFromString(string) {
		var tzchunk = (parseTokenTimezone.exec(string) || [])[0],
			parts = (tzchunk + '').match(parseTimezoneChunker) || ['-', 0, 0],
			minutes = +(parts[1] * 60) + ~~parts[2];

		return parts[0] === '+' ? -minutes : minutes;
	}

	// function to convert string input to date
	function addTimeToArrayFromToken(token, input, config) {
		var a, datePartArray = config._a;

		switch (token) {
			// MONTH
			case 'M' : // fall through to MM
			case 'MM' :
				datePartArray[1] = (input == null) ? 0 : ~~input - 1;
				break;
			case 'MMM' : // fall through to MMMM
			case 'MMMM' :
				a = getLangDefinition(config._l).monthsParse(input);
				// if we didn't find a month name, mark the date as invalid.
				if (a != null) {
					datePartArray[1] = a;
				} else {
					config._isValid = false;
				}
				break;
			// DAY OF MONTH
			case 'D' : // fall through to DDDD
			case 'DD' : // fall through to DDDD
			case 'DDD' : // fall through to DDDD
			case 'DDDD' :
				if (input != null) {
					datePartArray[2] = ~~input;
				}
				break;
			// YEAR
			case 'YY' :
				datePartArray[0] = ~~input + (~~input > 68 ? 1900 : 2000);
				break;
			case 'YYYY' :
			case 'YYYYY' :
				datePartArray[0] = ~~input;
				break;
			// AM / PM
			case 'a' : // fall through to A
			case 'A' :
				config._isPm = getLangDefinition(config._l).isPM(input);
				break;
			// 24 HOUR
			case 'H' : // fall through to hh
			case 'HH' : // fall through to hh
			case 'h' : // fall through to hh
			case 'hh' :
				datePartArray[3] = ~~input;
				break;
			// MINUTE
			case 'm' : // fall through to mm
			case 'mm' :
				datePartArray[4] = ~~input;
				break;
			// SECOND
			case 's' : // fall through to ss
			case 'ss' :
				datePartArray[5] = ~~input;
				break;
			// MILLISECOND
			case 'S' :
			case 'SS' :
			case 'SSS' :
				datePartArray[6] = ~~ (('0.' + input) * 1000);
				break;
			// UNIX TIMESTAMP WITH MS
			case 'X':
				config._d = new Date(parseFloat(input) * 1000);
				break;
			// TIMEZONE
			case 'Z' : // fall through to ZZ
			case 'ZZ' :
				config._useUTC = true;
				config._tzm = timezoneMinutesFromString(input);
				break;
		}

		// if the input is null, the date is not valid
		if (input == null) {
			config._isValid = false;
		}
	}

	// 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 dateFromArray(config) {
		var i, date, input = [];

		if (config._d) {
			return;
		}

		for (i = 0; i < 7; i++) {
			config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
		}

		// add the offsets to the time to be parsed so that we can have a clean array for checking isValid
		input[3] += ~~((config._tzm || 0) / 60);
		input[4] += ~~((config._tzm || 0) % 60);

		date = new Date(0);

		if (config._useUTC) {
			date.setUTCFullYear(input[0], input[1], input[2]);
			date.setUTCHours(input[3], input[4], input[5], input[6]);
		} else {
			date.setFullYear(input[0], input[1], input[2]);
			date.setHours(input[3], input[4], input[5], input[6]);
		}

		config._d = date;
	}

	// date from string and format string
	function makeDateFromStringAndFormat(config) {
		// This array is used to make a Date, either with `new Date` or `Date.UTC`
		var tokens = config._f.match(formattingTokens),
			string = config._i,
			i, parsedInput;

		config._a = [];

		for (i = 0; i < tokens.length; i++) {
			parsedInput = (getParseRegexForToken(tokens[i], config).exec(string) || [])[0];
			if (parsedInput) {
				string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
			}
			// don't parse if its not a known token
			if (formatTokenFunctions[tokens[i]]) {
				addTimeToArrayFromToken(tokens[i], parsedInput, config);
			}
		}

		// add remaining unparsed input to the string
		if (string) {
			config._il = string;
		}

		// handle am pm
		if (config._isPm && config._a[3] < 12) {
			config._a[3] += 12;
		}
		// if is 12 am, change hours to 0
		if (config._isPm === false && config._a[3] === 12) {
			config._a[3] = 0;
		}
		// return
		dateFromArray(config);
	}

	// date from string and array of format strings
	function makeDateFromStringAndArray(config) {
		var tempConfig,
			tempMoment,
			bestMoment,

			scoreToBeat = 99,
			i,
			currentScore;

		for (i = 0; i < config._f.length; i++) {
			tempConfig = extend({}, config);
			tempConfig._f = config._f[i];
			makeDateFromStringAndFormat(tempConfig);
			tempMoment = new Moment(tempConfig);

			currentScore = compareArrays(tempConfig._a, tempMoment.toArray());

			// if there is any input that was not parsed
			// add a penalty for that format
			if (tempMoment._il) {
				currentScore += tempMoment._il.length;
			}

			if (currentScore < scoreToBeat) {
				scoreToBeat = currentScore;
				bestMoment = tempMoment;
			}
		}

		extend(config, bestMoment);
	}

	// date from iso format
	function makeDateFromString(config) {
		var i,
			string = config._i,
			match = isoRegex.exec(string);

		if (match) {
			// match[2] should be "T" or undefined
			config._f = 'YYYY-MM-DD' + (match[2] || " ");
			for (i = 0; i < 4; i++) {
				if (isoTimes[i][1].exec(string)) {
					config._f += isoTimes[i][0];
					break;
				}
			}
			if (parseTokenTimezone.exec(string)) {
				config._f += " Z";
			}
			makeDateFromStringAndFormat(config);
		} else {
			config._d = new Date(string);
		}
	}

	function makeDateFromInput(config) {
		var input = config._i,
			matched = aspNetJsonRegex.exec(input);

		if (input === undefined) {
			config._d = new Date();
		} else if (matched) {
			config._d = new Date(+matched[1]);
		} else if (typeof input === 'string') {
			makeDateFromString(config);
		} else if (isArray(input)) {
			config._a = input.slice(0);
			dateFromArray(config);
		} else {
			config._d = input instanceof Date ? new Date(+input) : new Date(input);
		}
	}


	/************************************
	 Relative Time
	 ************************************/


		// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
	function substituteTimeAgo(string, number, withoutSuffix, isFuture, lang) {
		return lang.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
	}

	function relativeTime(milliseconds, withoutSuffix, lang) {
		var seconds = round(Math.abs(milliseconds) / 1000),
			minutes = round(seconds / 60),
			hours = round(minutes / 60),
			days = round(hours / 24),
			years = round(days / 365),
			args = seconds < 45 && ['s', seconds] ||
				minutes === 1 && ['m'] ||
				minutes < 45 && ['mm', minutes] ||
				hours === 1 && ['h'] ||
				hours < 22 && ['hh', hours] ||
				days === 1 && ['d'] ||
				days <= 25 && ['dd', days] ||
				days <= 45 && ['M'] ||
				days < 345 && ['MM', round(days / 30)] ||
				years === 1 && ['y'] || ['yy', years];
		args[2] = withoutSuffix;
		args[3] = milliseconds > 0;
		args[4] = lang;
		return substituteTimeAgo.apply({}, args);
	}


	/************************************
	 Week of Year
	 ************************************/


		// firstDayOfWeek       0 = sun, 6 = sat
		//                      the day of the week that starts the week
		//                      (usually sunday or monday)
		// firstDayOfWeekOfYear 0 = sun, 6 = sat
		//                      the first week is the week that contains the first
		//                      of this day of the week
		//                      (eg. ISO weeks use thursday (4))
	function weekOfYear(mom, firstDayOfWeek, firstDayOfWeekOfYear) {
		var end = firstDayOfWeekOfYear - firstDayOfWeek,
			daysToDayOfWeek = firstDayOfWeekOfYear - mom.day(),
			adjustedMoment;


		if (daysToDayOfWeek > end) {
			daysToDayOfWeek -= 7;
		}

		if (daysToDayOfWeek < end - 7) {
			daysToDayOfWeek += 7;
		}

		adjustedMoment = moment(mom).add('d', daysToDayOfWeek);
		return {
			week: Math.ceil(adjustedMoment.dayOfYear() / 7),
			year: adjustedMoment.year()
		};
	}


	/************************************
	 Top Level Functions
	 ************************************/

	function makeMoment(config) {
		var input = config._i,
			format = config._f;

		if (input === null || input === '') {
			return null;
		}

		if (typeof input === 'string') {
			config._i = input = getLangDefinition().preparse(input);
		}

		if (moment.isMoment(input)) {
			config = extend({}, input);
			config._d = new Date(+input._d);
		} else if (format) {
			if (isArray(format)) {
				makeDateFromStringAndArray(config);
			} else {
				makeDateFromStringAndFormat(config);
			}
		} else {
			makeDateFromInput(config);
		}

		return new Moment(config);
	}

	moment = function (input, format, lang) {
		return makeMoment({
			_i : input,
			_f : format,
			_l : lang,
			_isUTC : false
		});
	};

	// creating with utc
	moment.utc = function (input, format, lang) {
		return makeMoment({
			_useUTC : true,
			_isUTC : true,
			_l : lang,
			_i : input,
			_f : format
		});
	};

	// creating with unix timestamp (in seconds)
	moment.unix = function (input) {
		return moment(input * 1000);
	};

	// duration
	moment.duration = function (input, key) {
		var isDuration = moment.isDuration(input),
			isNumber = (typeof input === 'number'),
			duration = (isDuration ? input._input : (isNumber ? {} : input)),
			matched = aspNetTimeSpanJsonRegex.exec(input),
			sign,
			ret;

		if (isNumber) {
			if (key) {
				duration[key] = input;
			} else {
				duration.milliseconds = input;
			}
		} else if (matched) {
			sign = (matched[1] === "-") ? -1 : 1;
			duration = {
				y: 0,
				d: ~~matched[2] * sign,
				h: ~~matched[3] * sign,
				m: ~~matched[4] * sign,
				s: ~~matched[5] * sign,
				ms: ~~matched[6] * sign
			};
		}

		ret = new Duration(duration);

		if (isDuration && input.hasOwnProperty('_lang')) {
			ret._lang = input._lang;
		}

		return ret;
	};

	// version number
	moment.version = VERSION;

	// default format
	moment.defaultFormat = isoFormat;

	// This function will be called whenever a moment is mutated.
	// It is intended to keep the offset in sync with the timezone.
	moment.updateOffset = function () {};

	// This function will load languages and then set the global language.  If
	// no arguments are passed in, it will simply return the current global
	// language key.
	moment.lang = function (key, values) {
		if (!key) {
			return moment.fn._lang._abbr;
		}
		if (values) {
			loadLang(key, values);
		} else if (!languages[key]) {
			getLangDefinition(key);
		}
		moment.duration.fn._lang = moment.fn._lang = getLangDefinition(key);
	};

	// returns language data
	moment.langData = function (key) {
		if (key && key._lang && key._lang._abbr) {
			key = key._lang._abbr;
		}
		return getLangDefinition(key);
	};

	// compare moment object
	moment.isMoment = function (obj) {
		return obj instanceof Moment;
	};

	// for typechecking Duration objects
	moment.isDuration = function (obj) {
		return obj instanceof Duration;
	};


	/************************************
	 Moment Prototype
	 ************************************/


	moment.fn = Moment.prototype = {

		clone : function () {
			return moment(this);
		},

		valueOf : function () {
			return +this._d + ((this._offset || 0) * 60000);
		},

		unix : function () {
			return Math.floor(+this / 1000);
		},

		toString : function () {
			return this.format("ddd MMM DD YYYY HH:mm:ss [GMT]ZZ");
		},

		toDate : function () {
			return this._offset ? new Date(+this) : this._d;
		},

		toISOString : function () {
			return formatMoment(moment(this).utc(), 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
		},

		toArray : function () {
			var m = this;
			return [
				m.year(),
				m.month(),
				m.date(),
				m.hours(),
				m.minutes(),
				m.seconds(),
				m.milliseconds()
			];
		},

		isValid : function () {
			if (this._isValid == null) {
				if (this._a) {
					this._isValid = !compareArrays(this._a, (this._isUTC ? moment.utc(this._a) : moment(this._a)).toArray());
				} else {
					this._isValid = !isNaN(this._d.getTime());
				}
			}
			return !!this._isValid;
		},

		utc : function () {
			return this.zone(0);
		},

		local : function () {
			this.zone(0);
			this._isUTC = false;
			return this;
		},

		format : function (inputString) {
			var output = formatMoment(this, inputString || moment.defaultFormat);
			return this.lang().postformat(output);
		},

		add : function (input, val) {
			var dur;
			// switch args to support add('s', 1) and add(1, 's')
			if (typeof input === 'string') {
				dur = moment.duration(+val, input);
			} else {
				dur = moment.duration(input, val);
			}
			addOrSubtractDurationFromMoment(this, dur, 1);
			return this;
		},

		subtract : function (input, val) {
			var dur;
			// switch args to support subtract('s', 1) and subtract(1, 's')
			if (typeof input === 'string') {
				dur = moment.duration(+val, input);
			} else {
				dur = moment.duration(input, val);
			}
			addOrSubtractDurationFromMoment(this, dur, -1);
			return this;
		},

		diff : function (input, units, asFloat) {
			var that = this._isUTC ? moment(input).zone(this._offset || 0) : moment(input).local(),
				zoneDiff = (this.zone() - that.zone()) * 6e4,
				diff, output;

			units = normalizeUnits(units);

			if (units === 'year' || units === 'month') {
				// average number of days in the months in the given dates
				diff = (this.daysInMonth() + that.daysInMonth()) * 432e5; // 24 * 60 * 60 * 1000 / 2
				// difference in months
				output = ((this.year() - that.year()) * 12) + (this.month() - that.month());
				// adjust by taking difference in days, average number of days
				// and dst in the given months.
				output += ((this - moment(this).startOf('month')) -
					(that - moment(that).startOf('month'))) / diff;
				// same as above but with zones, to negate all dst
				output -= ((this.zone() - moment(this).startOf('month').zone()) -
					(that.zone() - moment(that).startOf('month').zone())) * 6e4 / diff;
				if (units === 'year') {
					output = output / 12;
				}
			} else {
				diff = (this - that);
				output = units === 'second' ? diff / 1e3 : // 1000
					units === 'minute' ? diff / 6e4 : // 1000 * 60
						units === 'hour' ? diff / 36e5 : // 1000 * 60 * 60
							units === 'day' ? (diff - zoneDiff) / 864e5 : // 1000 * 60 * 60 * 24, negate dst
								units === 'week' ? (diff - zoneDiff) / 6048e5 : // 1000 * 60 * 60 * 24 * 7, negate dst
									diff;
			}
			return asFloat ? output : absRound(output);
		},

		from : function (time, withoutSuffix) {
			return moment.duration(this.diff(time)).lang(this.lang()._abbr).humanize(!withoutSuffix);
		},

		fromNow : function (withoutSuffix) {
			return this.from(moment(), withoutSuffix);
		},

		calendar : function () {
			var diff = this.diff(moment().startOf('day'), 'days', true),
				format = diff < -6 ? 'sameElse' :
					diff < -1 ? 'lastWeek' :
						diff < 0 ? 'lastDay' :
							diff < 1 ? 'sameDay' :
								diff < 2 ? 'nextDay' :
									diff < 7 ? 'nextWeek' : 'sameElse';
			return this.format(this.lang().calendar(format, this));
		},

		isLeapYear : function () {
			var year = this.year();
			return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
		},

		isDST : function () {
			return (this.zone() < this.clone().month(0).zone() ||
				this.zone() < this.clone().month(5).zone());
		},

		day : function (input) {
			var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
			if (input != null) {
				if (typeof input === 'string') {
					input = this.lang().weekdaysParse(input);
					if (typeof input !== 'number') {
						return this;
					}
				}
				return this.add({ d : input - day });
			} else {
				return day;
			}
		},

		month : function (input) {
			var utc = this._isUTC ? 'UTC' : '',
				dayOfMonth,
				daysInMonth;

			if (input != null) {
				if (typeof input === 'string') {
					input = this.lang().monthsParse(input);
					if (typeof input !== 'number') {
						return this;
					}
				}

				dayOfMonth = this.date();
				this.date(1);
				this._d['set' + utc + 'Month'](input);
				this.date(Math.min(dayOfMonth, this.daysInMonth()));

				moment.updateOffset(this);
				return this;
			} else {
				return this._d['get' + utc + 'Month']();
			}
		},

		startOf: function (units) {
			units = normalizeUnits(units);
			// the following switch intentionally omits break keywords
			// to utilize falling through the cases.
			switch (units) {
				case 'year':
					this.month(0);
				/* falls through */
				case 'month':
					this.date(1);
				/* falls through */
				case 'week':
				case 'day':
					this.hours(0);
				/* falls through */
				case 'hour':
					this.minutes(0);
				/* falls through */
				case 'minute':
					this.seconds(0);
				/* falls through */
				case 'second':
					this.milliseconds(0);
				/* falls through */
			}

			// weeks are a special case
			if (units === 'week') {
				this.weekday(0);
			}

			return this;
		},

		endOf: function (units) {
			return this.startOf(units).add(units, 1).subtract('ms', 1);
		},

		isAfter: function (input, units) {
			units = typeof units !== 'undefined' ? units : 'millisecond';
			return +this.clone().startOf(units) > +moment(input).startOf(units);
		},

		isBefore: function (input, units) {
			units = typeof units !== 'undefined' ? units : 'millisecond';
			return +this.clone().startOf(units) < +moment(input).startOf(units);
		},

		isSame: function (input, units) {
			units = typeof units !== 'undefined' ? units : 'millisecond';
			return +this.clone().startOf(units) === +moment(input).startOf(units);
		},

		min: function (other) {
			other = moment.apply(null, arguments);
			return other < this ? this : other;
		},

		max: function (other) {
			other = moment.apply(null, arguments);
			return other > this ? this : other;
		},

		zone : function (input) {
			var offset = this._offset || 0;
			if (input != null) {
				if (typeof input === "string") {
					input = timezoneMinutesFromString(input);
				}
				if (Math.abs(input) < 16) {
					input = input * 60;
				}
				this._offset = input;
				this._isUTC = true;
				if (offset !== input) {
					addOrSubtractDurationFromMoment(this, moment.duration(offset - input, 'm'), 1, true);
				}
			} else {
				return this._isUTC ? offset : this._d.getTimezoneOffset();
			}
			return this;
		},

		zoneAbbr : function () {
			return this._isUTC ? "UTC" : "";
		},

		zoneName : function () {
			return this._isUTC ? "Coordinated Universal Time" : "";
		},

		daysInMonth : function () {
			return moment.utc([this.year(), this.month() + 1, 0]).date();
		},

		dayOfYear : function (input) {
			var dayOfYear = round((moment(this).startOf('day') - moment(this).startOf('year')) / 864e5) + 1;
			return input == null ? dayOfYear : this.add("d", (input - dayOfYear));
		},

		weekYear : function (input) {
			var year = weekOfYear(this, this.lang()._week.dow, this.lang()._week.doy).year;
			return input == null ? year : this.add("y", (input - year));
		},

		isoWeekYear : function (input) {
			var year = weekOfYear(this, 1, 4).year;
			return input == null ? year : this.add("y", (input - year));
		},

		week : function (input) {
			var week = this.lang().week(this);
			return input == null ? week : this.add("d", (input - week) * 7);
		},

		isoWeek : function (input) {
			var week = weekOfYear(this, 1, 4).week;
			return input == null ? week : this.add("d", (input - week) * 7);
		},

		weekday : function (input) {
			var weekday = (this._d.getDay() + 7 - this.lang()._week.dow) % 7;
			return input == null ? weekday : this.add("d", input - weekday);
		},

		isoWeekday : function (input) {
			// 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.
			return input == null ? this.day() || 7 : this.day(this.day() % 7 ? input : input - 7);
		},

		// If passed a language key, it will set the language for this
		// instance.  Otherwise, it will return the language configuration
		// variables for this instance.
		lang : function (key) {
			if (key === undefined) {
				return this._lang;
			} else {
				this._lang = getLangDefinition(key);
				return this;
			}
		}
	};

	// helper for adding shortcuts
	function makeGetterAndSetter(name, key) {
		moment.fn[name] = moment.fn[name + 's'] = function (input) {
			var utc = this._isUTC ? 'UTC' : '';
			if (input != null) {
				this._d['set' + utc + key](input);
				moment.updateOffset(this);
				return this;
			} else {
				return this._d['get' + utc + key]();
			}
		};
	}

	// loop through and add shortcuts (Month, Date, Hours, Minutes, Seconds, Milliseconds)
	for (i = 0; i < proxyGettersAndSetters.length; i ++) {
		makeGetterAndSetter(proxyGettersAndSetters[i].toLowerCase().replace(/s$/, ''), proxyGettersAndSetters[i]);
	}

	// add shortcut for year (uses different syntax than the getter/setter 'year' == 'FullYear')
	makeGetterAndSetter('year', 'FullYear');

	// add plural methods
	moment.fn.days = moment.fn.day;
	moment.fn.months = moment.fn.month;
	moment.fn.weeks = moment.fn.week;
	moment.fn.isoWeeks = moment.fn.isoWeek;

	// add aliased format methods
	moment.fn.toJSON = moment.fn.toISOString;

	/************************************
	 Duration Prototype
	 ************************************/


	moment.duration.fn = Duration.prototype = {
		_bubble : function () {
			var milliseconds = this._milliseconds,
				days = this._days,
				months = this._months,
				data = this._data,
				seconds, minutes, hours, years;

			// The following code bubbles up values, see the tests for
			// examples of what that means.
			data.milliseconds = milliseconds % 1000;

			seconds = absRound(milliseconds / 1000);
			data.seconds = seconds % 60;

			minutes = absRound(seconds / 60);
			data.minutes = minutes % 60;

			hours = absRound(minutes / 60);
			data.hours = hours % 24;

			days += absRound(hours / 24);
			data.days = days % 30;

			months += absRound(days / 30);
			data.months = months % 12;

			years = absRound(months / 12);
			data.years = years;
		},

		weeks : function () {
			return absRound(this.days() / 7);
		},

		valueOf : function () {
			return this._milliseconds +
				this._days * 864e5 +
				(this._months % 12) * 2592e6 +
				~~(this._months / 12) * 31536e6;
		},

		humanize : function (withSuffix) {
			var difference = +this,
				output = relativeTime(difference, !withSuffix, this.lang());

			if (withSuffix) {
				output = this.lang().pastFuture(difference, output);
			}

			return this.lang().postformat(output);
		},

		add : function (input, val) {
			// supports only 2.0-style add(1, 's') or add(moment)
			var dur = moment.duration(input, val);

			this._milliseconds += dur._milliseconds;
			this._days += dur._days;
			this._months += dur._months;

			this._bubble();

			return this;
		},

		subtract : function (input, val) {
			var dur = moment.duration(input, val);

			this._milliseconds -= dur._milliseconds;
			this._days -= dur._days;
			this._months -= dur._months;

			this._bubble();

			return this;
		},

		get : function (units) {
			units = normalizeUnits(units);
			return this[units.toLowerCase() + 's']();
		},

		as : function (units) {
			units = normalizeUnits(units);
			return this['as' + units.charAt(0).toUpperCase() + units.slice(1) + 's']();
		},

		lang : moment.fn.lang
	};

	function makeDurationGetter(name) {
		moment.duration.fn[name] = function () {
			return this._data[name];
		};
	}

	function makeDurationAsGetter(name, factor) {
		moment.duration.fn['as' + name] = function () {
			return +this / factor;
		};
	}

	for (i in unitMillisecondFactors) {
		if (unitMillisecondFactors.hasOwnProperty(i)) {
			makeDurationAsGetter(i, unitMillisecondFactors[i]);
			makeDurationGetter(i.toLowerCase());
		}
	}

	makeDurationAsGetter('Weeks', 6048e5);
	moment.duration.fn.asMonths = function () {
		return (+this - this.years() * 31536e6) / 2592e6 + this.years() * 12;
	};


	/************************************
	 Default Lang
	 ************************************/


		// Set default language, other languages will inherit from English.
	moment.lang('en', {
		ordinal : function (number) {
			var b = number % 10,
				output = (~~ (number % 100 / 10) === 1) ? 'th' :
					(b === 1) ? 'st' :
						(b === 2) ? 'nd' :
							(b === 3) ? 'rd' : 'th';
			return number + output;
		}
	});


	/************************************
	 Exposing Moment
	 ************************************/


	// CommonJS module is defined
	if (hasModule) {
		module.exports = moment;
	}
	/*global ender:false */
	if (typeof ender === 'undefined') {
		// here, `this` means `window` in the browser, or `global` on the server
		// add `moment` as a global object via a string identifier,
		// for Closure Compiler "advanced" mode
		this['moment'] = moment;
	}
	/*global define:false */
	if (typeof define === "function" && define.amd) {
		define("moment", [], function () {
			return moment;
		});
	}
}).call(this);