// 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);