diff --git a/moment/moment-node.d.ts b/moment/moment-node.d.ts
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+++ b/moment/moment-node.d.ts
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+// Type definitions for Moment.js 2.8.0
+// Project: https://github.com/timrwood/moment
+// Definitions by: Michael Lakerveld <https://github.com/Lakerfield>, Aaron King <https://github.com/kingdango>, Hiroki Horiuchi <https://github.com/horiuchi>, Dick van den Brink <https://github.com/DickvdBrink>, Adi Dahiya <https://github.com/adidahiya>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module moment {
+
+    interface MomentInput {
+
+        years?: number;
+        y?: number;
+
+        months?: number;
+        M?: number;
+
+        weeks?: number;
+        w?: number;
+
+        days?: number;
+        d?: number;
+
+        hours?: number;
+        h?: number;
+
+        minutes?: number;
+        m?: number;
+
+        seconds?: number;
+        s?: number;
+
+        milliseconds?: number;
+        ms?: number;
+
+    }
+
+    interface Duration {
+
+        humanize(withSuffix?: boolean): string;
+
+        as(units: string): number;
+
+        milliseconds(): number;
+        asMilliseconds(): number;
+
+        seconds(): number;
+        asSeconds(): number;
+
+        minutes(): number;
+        asMinutes(): number;
+
+        hours(): number;
+        asHours(): number;
+
+        days(): number;
+        asDays(): number;
+
+        months(): number;
+        asMonths(): number;
+
+        years(): number;
+        asYears(): number;
+
+        add(n: number, p: string): Duration;
+        add(n: number): Duration;
+        add(d: Duration): Duration;
+
+        subtract(n: number, p: string): Duration;
+        subtract(n: number): Duration;
+        subtract(d: Duration): Duration;
+
+        toISOString(): string;
+
+    }
+
+    interface Moment {
+
+        format(format: string): string;
+        format(): string;
+
+        fromNow(withoutSuffix?: boolean): string;
+
+        startOf(unitOfTime: string): Moment;
+        endOf(unitOfTime: string): Moment;
+
+        /**
+         * Mutates the original moment by adding time. (deprecated in 2.8.0)
+         *
+         * @param unitOfTime the unit of time you want to add (eg "years" / "hours" etc)
+         * @param amount the amount you want to add
+         */
+        add(unitOfTime: string, amount: number): Moment;
+        /**
+         * Mutates the original moment by adding time.
+         *
+         * @param amount the amount you want to add
+         * @param unitOfTime the unit of time you want to add (eg "years" / "hours" etc)
+         */
+        add(amount: number, unitOfTime: string): Moment;
+        /**
+         * Mutates the original moment by adding time. Note that the order of arguments can be flipped.
+         *
+         * @param amount the amount you want to add
+         * @param unitOfTime the unit of time you want to add (eg "years" / "hours" etc)
+         */
+        add(amount: string, unitOfTime: string): Moment;
+        /**
+         * Mutates the original moment by adding time.
+         *
+         * @param objectLiteral an object literal that describes multiple time units {days:7,months:1}
+         */
+        add(objectLiteral: MomentInput): Moment;
+        /**
+         * Mutates the original moment by adding time.
+         *
+         * @param duration a length of time
+         */
+        add(duration: Duration): Moment;
+
+        /**
+         * Mutates the original moment by subtracting time. (deprecated in 2.8.0)
+         *
+         * @param unitOfTime the unit of time you want to subtract (eg "years" / "hours" etc)
+         * @param amount the amount you want to subtract
+         */
+        subtract(unitOfTime: string, amount: number): Moment;
+        /**
+         * Mutates the original moment by subtracting time.
+         *
+         * @param unitOfTime the unit of time you want to subtract (eg "years" / "hours" etc)
+         * @param amount the amount you want to subtract
+         */
+        subtract(amount: number, unitOfTime: string): Moment;
+        /**
+         * Mutates the original moment by subtracting time. Note that the order of arguments can be flipped.
+         *
+         * @param amount the amount you want to add
+         * @param unitOfTime the unit of time you want to subtract (eg "years" / "hours" etc)
+         */
+        subtract(amount: string, unitOfTime: string): Moment;
+        /**
+         * Mutates the original moment by subtracting time.
+         *
+         * @param objectLiteral an object literal that describes multiple time units {days:7,months:1}
+         */
+        subtract(objectLiteral: MomentInput): Moment;
+        /**
+         * Mutates the original moment by subtracting time.
+         *
+         * @param duration a length of time
+         */
+        subtract(duration: Duration): Moment;
+
+        calendar(): string;
+        calendar(start: Moment): string;
+
+        clone(): Moment;
+
+        /**
+         * @return Unix timestamp, or milliseconds since the epoch.
+         */
+        valueOf(): number;
+
+        local(): Moment; // current date/time in local mode
+
+        utc(): Moment; // current date/time in UTC mode
+
+        isValid(): boolean;
+
+        year(y: number): Moment;
+        year(): number;
+        quarter(): number;
+        quarter(q: number): Moment;
+        month(M: number): Moment;
+        month(M: string): Moment;
+        month(): number;
+        day(d: number): Moment;
+        day(d: string): Moment;
+        day(): number;
+        date(d: number): Moment;
+        date(): number;
+        hour(h: number): Moment;
+        hour(): number;
+        hours(h: number): Moment;
+        hours(): number;
+        minute(m: number): Moment;
+        minute(): number;
+        minutes(m: number): Moment;
+        minutes(): number;
+        second(s: number): Moment;
+        second(): number;
+        seconds(s: number): Moment;
+        seconds(): number;
+        millisecond(ms: number): Moment;
+        millisecond(): number;
+        milliseconds(ms: number): Moment;
+        milliseconds(): number;
+        weekday(): number;
+        weekday(d: number): Moment;
+        isoWeekday(): number;
+        isoWeekday(d: number): Moment;
+        weekYear(): number;
+        weekYear(d: number): Moment;
+        isoWeekYear(): number;
+        isoWeekYear(d: number): Moment;
+        week(): number;
+        week(d: number): Moment;
+        weeks(): number;
+        weeks(d: number): Moment;
+        isoWeek(): number;
+        isoWeek(d: number): Moment;
+        isoWeeks(): number;
+        isoWeeks(d: number): Moment;
+        weeksInYear(): number;
+        isoWeeksInYear(): number;
+        dayOfYear(): number;
+        dayOfYear(d: number): Moment;
+
+        from(f: Moment): string;
+        from(f: Moment, suffix: boolean): string;
+        from(d: Date): string;
+        from(s: string): string;
+        from(date: number[]): string;
+
+        diff(b: Moment): number;
+        diff(b: Moment, unitOfTime: string): number;
+        diff(b: Moment, unitOfTime: string, round: boolean): number;
+
+        toArray(): number[];
+        toDate(): Date;
+        toISOString(): string;
+        toJSON(): string;
+        unix(): number;
+
+        isLeapYear(): boolean;
+        zone(): number;
+        zone(b: number): Moment;
+        zone(b: string): Moment;
+        utcOffset(): number;
+        utcOffset(b: number): Moment;
+        utcOffset(b: string): Moment;
+        daysInMonth(): number;
+        isDST(): boolean;
+
+        isBefore(): boolean;
+        isBefore(b: Moment): boolean;
+        isBefore(b: string): boolean;
+        isBefore(b: Number): boolean;
+        isBefore(b: Date): boolean;
+        isBefore(b: number[]): boolean;
+        isBefore(b: Moment, granularity: string): boolean;
+        isBefore(b: String, granularity: string): boolean;
+        isBefore(b: Number, granularity: string): boolean;
+        isBefore(b: Date, granularity: string): boolean;
+        isBefore(b: number[], granularity: string): boolean;
+
+        isAfter(): boolean;
+        isAfter(b: Moment): boolean;
+        isAfter(b: string): boolean;
+        isAfter(b: Number): boolean;
+        isAfter(b: Date): boolean;
+        isAfter(b: number[]): boolean;
+        isAfter(b: Moment, granularity: string): boolean;
+        isAfter(b: String, granularity: string): boolean;
+        isAfter(b: Number, granularity: string): boolean;
+        isAfter(b: Date, granularity: string): boolean;
+        isAfter(b: number[], granularity: string): boolean;
+
+        isSame(b: Moment): boolean;
+        isSame(b: string): boolean;
+        isSame(b: Number): boolean;
+        isSame(b: Date): boolean;
+        isSame(b: number[]): boolean;
+        isSame(b: Moment, granularity: string): boolean;
+        isSame(b: String, granularity: string): boolean;
+        isSame(b: Number, granularity: string): boolean;
+        isSame(b: Date, granularity: string): boolean;
+        isSame(b: number[], granularity: string): boolean;
+
+        // Deprecated as of 2.8.0.
+        lang(language: string): Moment;
+        lang(reset: boolean): Moment;
+        lang(): MomentLanguage;
+
+        locale(language: string): Moment;
+        locale(reset: boolean): Moment;
+        locale(): string;
+
+        localeData(language: string): Moment;
+        localeData(reset: boolean): Moment;
+        localeData(): MomentLanguage;
+
+        // Deprecated as of 2.7.0.
+        max(date: Date): Moment;
+        max(date: number): Moment;
+        max(date: any[]): Moment;
+        max(date: string): Moment;
+        max(date: string, format: string): Moment;
+        max(clone: Moment): Moment;
+
+        // Deprecated as of 2.7.0.
+        min(date: Date): Moment;
+        min(date: number): Moment;
+        min(date: any[]): Moment;
+        min(date: string): Moment;
+        min(date: string, format: string): Moment;
+        min(clone: Moment): Moment;
+
+        get(unit: string): number;
+        set(unit: string, value: number): Moment;
+
+    }
+
+    interface MomentCalendar {
+
+      lastDay: any;
+      sameDay: any;
+      nextDay: any;
+      lastWeek: any;
+      nextWeek: any;
+      sameElse: any;
+
+    }
+
+    interface BaseMomentLanguage {
+        months ?: any;
+        monthsShort ?: any;
+        weekdays ?: any;
+        weekdaysShort ?: any;
+        weekdaysMin ?: any;
+        relativeTime ?: MomentRelativeTime;
+        meridiem ?: (hour: number, minute: number, isLowercase: boolean) => string;
+        calendar ?: MomentCalendar;
+        ordinal ?: (num: number) => string;
+    }
+
+    interface MomentLanguage extends BaseMomentLanguage {
+      longDateFormat?: MomentLongDateFormat;
+    }
+
+    interface MomentLanguageData extends BaseMomentLanguage {
+        /**
+         * @param formatType should be L, LL, LLL, LLLL.
+         */
+        longDateFormat(formatType: string): string;
+    }
+
+    interface MomentLongDateFormat {
+
+      L: string;
+      LL: string;
+      LLL: string;
+      LLLL: string;
+      LT: string;
+      l?: string;
+      ll?: string;
+      lll?: string;
+      llll?: string;
+      lt?: string;
+
+    }
+
+    interface MomentRelativeTime {
+
+      future: any;
+      past: any;
+      s: any;
+      m: any;
+      mm: any;
+      h: any;
+      hh: any;
+      d: any;
+      dd: any;
+      M: any;
+      MM: any;
+      y: any;
+      yy: any;
+
+    }
+
+    interface MomentStatic {
+
+        version: string;
+
+        (): Moment;
+        (date: number): Moment;
+        (date: number[]): Moment;
+        (date: string, format?: string, strict?: boolean): Moment;
+        (date: string, format?: string, language?: string, strict?: boolean): Moment;
+        (date: string, formats: string[], strict?: boolean): Moment;
+        (date: string, formats: string[], language?: string, strict?: boolean): Moment;
+        (date: string, specialFormat: () => void, strict?: boolean): Moment;
+        (date: string, specialFormat: () => void, language?: string, strict?: boolean): Moment;
+        (date: string, formatsIncludingSpecial: any[], strict?: boolean): Moment;
+        (date: string, formatsIncludingSpecial: any[], language?: string, strict?: boolean): Moment;
+        (date: Date): Moment;
+        (date: Moment): Moment;
+        (date: Object): Moment;
+
+        utc(): Moment;
+        utc(date: number): Moment;
+        utc(date: number[]): Moment;
+        utc(date: string, format?: string, strict?: boolean): Moment;
+        utc(date: string, format?: string, language?: string, strict?: boolean): Moment;
+        utc(date: string, formats: string[], strict?: boolean): Moment;
+        utc(date: string, formats: string[], language?: string, strict?: boolean): Moment;
+        utc(date: Date): Moment;
+        utc(date: Moment): Moment;
+        utc(date: Object): Moment;
+
+        unix(timestamp: number): Moment;
+
+        invalid(parsingFlags?: Object): Moment;
+        isMoment(): boolean;
+        isMoment(m: any): boolean;
+        isDuration(): boolean;
+        isDuration(d: any): boolean;
+
+        // Deprecated in 2.8.0.
+        lang(language?: string): string;
+        lang(language?: string, definition?: MomentLanguage): string;
+
+        locale(language?: string): string;
+        locale(language?: string[]): string;
+        locale(language?: string, definition?: MomentLanguage): string;
+
+        localeData(language?: string): MomentLanguageData;
+
+        longDateFormat: any;
+        relativeTime: any;
+        meridiem: (hour: number, minute: number, isLowercase: boolean) => string;
+        calendar: any;
+        ordinal: (num: number) => string;
+
+        duration(milliseconds: Number): Duration;
+        duration(num: Number, unitOfTime: string): Duration;
+        duration(input: MomentInput): Duration;
+        duration(object: any): Duration;
+        duration(): Duration;
+
+        parseZone(date: string): Moment;
+
+        months(): string[];
+        months(index: number): string;
+        months(format: string): string[];
+        months(format: string, index: number): string;
+        monthsShort(): string[];
+        monthsShort(index: number): string;
+        monthsShort(format: string): string[];
+        monthsShort(format: string, index: number): string;
+
+        weekdays(): string[];
+        weekdays(index: number): string;
+        weekdays(format: string): string[];
+        weekdays(format: string, index: number): string;
+        weekdaysShort(): string[];
+        weekdaysShort(index: number): string;
+        weekdaysShort(format: string): string[];
+        weekdaysShort(format: string, index: number): string;
+        weekdaysMin(): string[];
+        weekdaysMin(index: number): string;
+        weekdaysMin(format: string): string[];
+        weekdaysMin(format: string, index: number): string;
+
+        min(moments: Moment[]): Moment;
+        max(moments: Moment[]): Moment;
+
+        normalizeUnits(unit: string): string;
+        relativeTimeThreshold(threshold: string, limit: number): void;
+
+        /**
+         * Constant used to enable explicit ISO_8601 format parsing.
+         */
+        ISO_8601(): void;
+
+    }
+
+}
+
+declare module 'moment' {
+    var moment: moment.MomentStatic;
+    export = moment;
+}