diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index ae430f57d1..42cdffabe4 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -309,6 +309,7 @@ All definitions files include a header with the author and editors, so at some p
* [text-buffer](https://github.com/atom/text-buffer) (by [vvakame](https://github.com/vvakame))
* [three.js](http://mrdoob.github.com/three.js/) (by [Kon](http://phyzkit.net/))
* [TimelineJS](https://github.com/NUKnightLab/TimelineJS) (by [Roland Zwaga](https://github.com/rolandzwaga))
+* [timezonecomplete](https://github.com/SpiritIT/timezonecomplete) (by [Rogier Schouten](https://github.com/rogierschouten))
* [Toastr](https://github.com/CodeSeven/toastr) (by [Boris Yankov](https://github.com/borisyankov))
* [trunk8](https://github.com/rviscomi/trunk8) (by [Blake Niemyjski](https://github.com/niemyjski))
* [TweenJS](http://www.createjs.com/#!/TweenJS) (by [Pedro Ferreira](https://bitbucket.org/drk4))
diff --git a/timezonecomplete/timezonecomplete-tests.ts b/timezonecomplete/timezonecomplete-tests.ts
new file mode 100644
index 0000000000..03f94e44bd
--- /dev/null
+++ b/timezonecomplete/timezonecomplete-tests.ts
@@ -0,0 +1,169 @@
+///
+
+import tc = require("timezonecomplete");
+
+var b: boolean = tc.isLeapYear(2014);
+var n: number = tc.daysInMonth(2014, 10);
+var s: string = tc.isoString(2014, 6, 30, 22, 10, 11, 230);
+
+// DURATION
+
+var d: tc.Duration;
+var d1: tc.Duration = tc.Duration.hours(24);
+var d2: tc.Duration = tc.Duration.minutes(24);
+var d3: tc.Duration = tc.Duration.seconds(24);
+var d4: tc.Duration = tc.Duration.milliseconds(24);
+var d5: tc.Duration = new tc.Duration(24);
+var d6: tc.Duration = new tc.Duration("00:01");
+var d7: tc.Duration = d6.clone();
+
+n = d7.wholeHours();
+n = d7.hours();
+n = d7.minutes();
+n = d7.minute();
+n = d7.seconds();
+n = d7.second();
+n = d7.milliseconds();
+n = d7.millisecond();
+s = d7.sign();
+b = d7.lessThan(d6);
+b = d7.greaterThan(d6);
+d = d7.min(d6);
+d = d7.max(d6);
+d = d7.multiply(3);
+d = d7.add(d6);
+d = d7.sub(d6);
+s = d7.toString();
+
+// TIMEZONE
+
+var t: tc.TimeZone;
+var k: tc.TimeZoneKind;
+
+t = tc.TimeZone.local();
+t = tc.TimeZone.utc();
+t = tc.TimeZone.zone(2);
+t = tc.TimeZone.zone("+01:00");
+s = t.name();
+k = t.kind();
+b = t.equals(t);
+b = t.isUtc();
+n = t.offsetForUtc(2014, 1, 1, 13, 0, 5, 123);
+n = t.offsetForZone(2014, 1, 1, 13, 0, 5, 123);
+n = t.offsetForUtcDate(new Date(2014, 1, 1, 13, 0, 5, 123), tc.DateFunctions.Get);
+n = t.offsetForZoneDate(new Date(2014, 1, 1, 13, 0, 5, 123), tc.DateFunctions.GetUTC);
+s = t.toString();
+s = tc.TimeZone.offsetToString(2);
+n = tc.TimeZone.stringToOffset("+00:01");
+
+// REALTIMESOURCE
+
+var date: Date = (new tc.RealTimeSource()).now();
+
+// DATETIME
+
+var dt: tc.DateTime;
+
+var ts: tc.TimeSource = tc.DateTime.timeSource;
+
+dt = tc.DateTime.nowLocal();
+dt = tc.DateTime.nowUtc();
+dt = tc.DateTime.now(tc.TimeZone.local());
+dt = new tc.DateTime();
+dt = new tc.DateTime("2014-01-01T13:05:01.123 UTC");
+dt = new tc.DateTime("2014-01-01T13:05:01.123", tc.TimeZone.utc());
+dt = new tc.DateTime(date, tc.DateFunctions.Get);
+dt = new tc.DateTime(date, tc.DateFunctions.Get, tc.TimeZone.utc());
+dt = new tc.DateTime(2014, 1, 1, 13, 5, 1, 123);
+dt = new tc.DateTime(2014, 1, 1, 13, 5, 1, 123, tc.TimeZone.utc());
+dt = new tc.DateTime(89949284);
+dt = new tc.DateTime(89949284, tc.TimeZone.utc());
+dt = dt.clone();
+t = dt.zone();
+n = dt.offset();
+n = dt.year();
+n = dt.month();
+n = dt.day();
+n = dt.hour();
+n = dt.minute();
+n = dt.second();
+n = dt.millisecond();
+n = dt.unixUtcMillis();
+n = dt.utcYear();
+n = dt.utcMonth();
+n = dt.utcDay();
+n = dt.utcHour();
+n = dt.utcMinute();
+n = dt.utcSecond();
+n = dt.utcMillisecond();
+dt.convert(tc.TimeZone.local());
+dt = dt.toZone(tc.TimeZone.utc());
+date = dt.toDate();
+dt = dt.add(tc.Duration.seconds(2));
+dt = dt.add(2, tc.TimeUnit.Year);
+dt = dt.add(2, tc.TimeUnit.Month);
+dt = dt.add(2, tc.TimeUnit.Week);
+dt = dt.add(2, tc.TimeUnit.Day);
+dt = dt.add(2, tc.TimeUnit.Hour);
+dt = dt.add(2, tc.TimeUnit.Minute);
+dt = dt.add(2, tc.TimeUnit.Second);
+dt = dt.addLocal(2, tc.TimeUnit.Second);
+dt = dt.sub(tc.Duration.seconds(2));
+dt = dt.sub(2, tc.TimeUnit.Year);
+dt = dt.sub(2, tc.TimeUnit.Month);
+dt = dt.sub(2, tc.TimeUnit.Week);
+dt = dt.sub(2, tc.TimeUnit.Day);
+dt = dt.sub(2, tc.TimeUnit.Hour);
+dt = dt.sub(2, tc.TimeUnit.Minute);
+dt = dt.sub(2, tc.TimeUnit.Second);
+dt = dt.subLocal(2, tc.TimeUnit.Second);
+d = dt.diff(new tc.DateTime(9289234, tc.TimeZone.local()));
+b = dt.lessThan(new tc.DateTime(9289234, tc.TimeZone.local()));
+b = dt.lessEqual(new tc.DateTime(9289234, tc.TimeZone.local()));
+b = dt.greaterThan(new tc.DateTime(9289234, tc.TimeZone.local()));
+b = dt.greaterEqual(new tc.DateTime(9289234, tc.TimeZone.local()));
+s = dt.toIsoString();
+s = dt.toString();
+s = dt.toUtcString();
+
+// PERIOD
+
+s = tc.periodDstToString(tc.PeriodDst.RegularIntervals);
+s = tc.periodDstToString(tc.PeriodDst.RegularLocalTime);
+
+var p: tc.Period;
+
+p = new tc.Period(tc.DateTime.nowLocal(), 1, tc.TimeUnit.Hour, tc.PeriodDst.RegularLocalTime);
+dt = p.start();
+n = p.amount();
+var tu: tc.TimeUnit = p.unit();
+var pd: tc.PeriodDst = p.dst();
+dt = p.findFirst(tc.DateTime.nowLocal());
+dt = p.findNext(dt);
+s = p.toIsoString();
+s = p.toString();
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/timezonecomplete/timezonecomplete.d.ts b/timezonecomplete/timezonecomplete.d.ts
new file mode 100644
index 0000000000..2f1b969bce
--- /dev/null
+++ b/timezonecomplete/timezonecomplete.d.ts
@@ -0,0 +1,681 @@
+// Type definitions for timezonecomplete
+// Project: https://github.com/SpiritIT/timezonecomplete
+// Definitions by: Rogier Schouten
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+// Generated by dts-bundle 0.1.1
+
+declare module 'timezonecomplete' {
+ /**
+ * @return True iff the given year is a leap year.
+ */
+ export function isLeapYear(year: number): boolean;
+ /**
+ * @param year The full year
+ * @param month The month 1-12
+ * @return The number of days in the given month
+ */
+ export function daysInMonth(year: number, month: number): number;
+ /**
+ * Returns an ISO time string. Note that months are 1-12.
+ */
+ export function isoString(year: number, month: number, day: number, hour: number, minute: number, second: number, millisecond: number): string;
+ /**
+ * Time units
+ */
+ export enum TimeUnit {
+ Second = 0,
+ Minute = 1,
+ Hour = 2,
+ Day = 3,
+ Week = 4,
+ Month = 5,
+ Year = 6,
+ }
+ /**
+ * Time duration. Create one e.g. like this: var d = Duration.hours(1).
+ * Note that time durations do not take leap seconds etc. into account:
+ * one hour is simply represented as 3600000 milliseconds.
+ */
+ export class Duration {
+ /**
+ * Positive number of milliseconds
+ * Stored positive because otherwise we constantly have to choose
+ * between Math.floor() and Math.ceil()
+ */
+ /**
+ * Sign: 1 or -1
+ */
+ /**
+ * Construct a time duration
+ * @param n Number of hours
+ * @return A duration of n hours
+ */
+ static hours(n: number): Duration;
+ /**
+ * Construct a time duration
+ * @param n Number of minutes
+ * @return A duration of n minutes
+ */
+ static minutes(n: number): Duration;
+ /**
+ * Construct a time duration
+ * @param n Number of seconds
+ * @return A duration of n seconds
+ */
+ static seconds(n: number): Duration;
+ /**
+ * Construct a time duration
+ * @param n Number of milliseconds
+ * @return A duration of n milliseconds
+ */
+ static milliseconds(n: number): Duration;
+ /**
+ * Construct a time duration of 0
+ */
+ constructor();
+ /**
+ * Construct a time duration from a number of milliseconds
+ */
+ constructor(milliseconds: number);
+ /**
+ * Construct a time duration from a string in format
+ * [-]h[:m[:s[.n]]] e.g. -01:00:30.501
+ */
+ constructor(input: string);
+ /**
+ * @return another instance of Duration with the same value.
+ */
+ clone(): Duration;
+ /**
+ * The entire duration in milliseconds (negative or positive)
+ */
+ milliseconds(): number;
+ /**
+ * The millisecond part of the duration (always positive)
+ * @return e.g. 400 for a -01:02:03.400 duration
+ */
+ millisecond(): number;
+ /**
+ * The entire duration in seconds (negative or positive, fractional)
+ * @return e.g. 1.5 for a 1500 milliseconds duration
+ */
+ seconds(): number;
+ /**
+ * The second part of the duration (always positive)
+ * @return e.g. 3 for a -01:02:03.400 duration
+ */
+ second(): number;
+ /**
+ * The entire duration in minutes (negative or positive, fractional)
+ * @return e.g. 1.5 for a 90000 milliseconds duration
+ */
+ minutes(): number;
+ /**
+ * The minute part of the duration (always positive)
+ * @return e.g. 2 for a -01:02:03.400 duration
+ */
+ minute(): number;
+ /**
+ * The entire duration in hours (negative or positive, fractional)
+ * @return e.g. 1.5 for a 5400000 milliseconds duration
+ */
+ hours(): number;
+ /**
+ * The hour part of the duration (always positive).
+ * Note that this part can exceed 23 hours, because for
+ * now, we do not have a days() function
+ * @return e.g. 25 for a -25:02:03.400 duration
+ */
+ wholeHours(): number;
+ /**
+ * Sign
+ * @return "-" if the duration is negative
+ */
+ sign(): string;
+ /**
+ * @return True iff (this < other)
+ */
+ lessThan(other: Duration): boolean;
+ /**
+ * @return True iff this and other represent the same time duration
+ */
+ equals(other: Duration): boolean;
+ /**
+ * @return True iff this > other
+ */
+ greaterThan(other: Duration): boolean;
+ /**
+ * @return The minimum (most negative) of this and other
+ */
+ min(other: Duration): Duration;
+ /**
+ * @return The maximum (most positive) of this and other
+ */
+ max(other: Duration): Duration;
+ /**
+ * @return a new Duration of (this * value)
+ */
+ multiply(value: number): Duration;
+ /**
+ * Add a duration.
+ * @return a new Duration of (this + value)
+ */
+ add(value: Duration): Duration;
+ /**
+ * Subtract a duration.
+ * @return a new Duration of (this - value)
+ */
+ sub(value: Duration): Duration;
+ /**
+ * String in [-]hh:mm:ss.nnn notation. All fields are
+ * always present except the sign.
+ */
+ toFullString(): string;
+ /**
+ * String in [-]hh[:mm[:ss[.nnn]]] notation. Fields are
+ * added as necessary
+ */
+ toString(): string;
+ }
+ /**
+ * The type of time zone
+ */
+ export enum TimeZoneKind {
+ /**
+ * Local time offset as determined by JavaScript Date class.
+ */
+ Local = 0,
+ /**
+ * Fixed offset from UTC, without DST.
+ */
+ Offset = 1,
+ /**
+ * IANA timezone managed through Olsen TZ database. Includes
+ * DST if applicable.
+ */
+ Proper = 2,
+ }
+ /**
+ * Time zone. The object is immutable because it is cached:
+ * requesting a time zone twice yields the very same object.
+ * Note that we use time zone offsets inverted w.r.t. JavaScript Date.getTimezoneOffset(),
+ * i.e. offset 90 means +01:30.
+ *
+ * Time zones come in three flavors: the local time zone, as calculated by JavaScript Date,
+ * a fixed offset ("+01:30") without DST, or a IANA timezone ("Europe/Amsterdam") with DST
+ * applied depending on the time zone rules.
+ */
+ export class TimeZone {
+ /**
+ * The local time zone for a given date. Note that
+ * the time zone varies with the date: amsterdam time for
+ * 2014-01-01 is +01:00 and amsterdam time for 2014-07-01 is +02:00
+ */
+ static local(): TimeZone;
+ /**
+ * The UTC time zone.
+ */
+ static utc(): TimeZone;
+ /**
+ * Returns a time zone object from the cache. If it does not exist, it is created.
+ * @return The time zone with the given offset w.r.t. UTC in minutes, e.g. 90 for +01:30
+ */
+ static zone(offset: number): TimeZone;
+ /**
+ * Returns a time zone object from the cache. If it does not exist, it is created.
+ * @param s: Empty string for local time, a TZ database time zone name (e.g. Europe/Amsterdam)
+ * or an offset string (either +01:30, +0130, +01, Z). For a full list of names, see:
+ * https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
+ */
+ static zone(s: string): TimeZone;
+ /**
+ * The time zone identifier. Can be an offset "-01:30" or an
+ * IANA time zone name "Europe/Amsterdam", or "localtime" for
+ * the local time zone.
+ */
+ name(): string;
+ /**
+ * The kind of time zone (Local/Offset/Proper)
+ */
+ kind(): TimeZoneKind;
+ /**
+ * Equality operator. Maps zero offsets and different names for UTC onto
+ * each other. Other time zones are not mapped onto each other.
+ */
+ equals(other: TimeZone): boolean;
+ /**
+ * Is this zone equivalent to UTC?
+ */
+ isUtc(): boolean;
+ /**
+ * Calculate timezone offset from a UTC time.
+ * @param year local full year
+ * @param month local month 1-12 (note this deviates from JavaScript date)
+ * @param day local day of month 1-31
+ * @param hour local hour 0-23
+ * @param minute local minute 0-59
+ * @param second local second 0-59
+ * @param millisecond local millisecond 0-999
+ * @return the offset of this time zone with respect to UTC at the given time.
+ */
+ offsetForUtc(year: number, month: number, day: number, hour?: number, minute?: number, second?: number, millisecond?: number): number;
+ /**
+ * Calculate timezone offset from a zone-local time (NOT a UTC time).
+ * @param year local full year
+ * @param month local month 1-12 (note this deviates from JavaScript date)
+ * @param day local day of month 1-31
+ * @param hour local hour 0-23
+ * @param minute local minute 0-59
+ * @param second local second 0-59
+ * @param millisecond local millisecond 0-999
+ * @return the offset of this time zone with respect to UTC at the given time.
+ */
+ offsetForZone(year: number, month: number, day: number, hour?: number, minute?: number, second?: number, millisecond?: number): number;
+ /**
+ * Convenience function, takes values from a Javascript Date
+ * Calls offsetForUtc() with the contents of the date
+ * @param date: the date
+ * @param funcs: the set of functions to use: get() or getUTC()
+ */
+ offsetForUtcDate(date: Date, funcs: DateFunctions): number;
+ /**
+ * Convenience function, takes values from a Javascript Date
+ * Calls offsetForUtc() with the contents of the date
+ * @param date: the date
+ * @param funcs: the set of functions to use: get() or getUTC()
+ */
+ offsetForZoneDate(date: Date, funcs: DateFunctions): number;
+ /**
+ * The time zone identifier (normalized).
+ * Either "localtime", IANA name, or "+hh:mm" offset.
+ */
+ toString(): string;
+ /**
+ * Convert an offset number into an offset string
+ * @param offset The offset in minutes from UTC e.g. 90 minutes
+ * @return the offset in ISO notation "+01:30" for +90 minutes
+ */
+ static offsetToString(offset: number): string;
+ /**
+ * String to offset conversion.
+ * @param s Formats: "-01:00", "-0100", "-01", "Z"
+ * @return offset w.r.t. UTC in minutes
+ */
+ static stringToOffset(s: string): number;
+ }
+ /**
+ * For testing purposes, we often need to manipulate what the current
+ * time is. This is an interface for a custom time source object
+ * so in tests you can use a custom time source.
+ */
+ export interface TimeSource {
+ /**
+ * Return the current date+time as a javascript Date object
+ */
+ now(): Date;
+ }
+ /**
+ * Default time source, returns actual time
+ */
+ export class RealTimeSource implements TimeSource {
+ now(): Date;
+ }
+ /**
+ * Indicates how a Date object should be interpreted.
+ * Either we can take getYear(), getMonth() etc for our field
+ * values, or we can take getUTCYear() etc to do that.
+ */
+ export enum DateFunctions {
+ /**
+ * Use the Date.getFullYear(), Date.getMonth(), ... functions.
+ */
+ Get = 0,
+ /**
+ * Use the Date.getUTCFullYear(), Date.getUTCMonth(), ... functions.
+ */
+ GetUTC = 1,
+ }
+ /**
+ * Our very own DateTime class which is time zone-aware
+ * and which can be mocked for testing purposes
+ */
+ export class DateTime {
+ /**
+ * Actual time source in use. Setting this property allows to
+ * fake time in tests. DateTime.nowLocal() and DateTime.nowUtc()
+ * use this property for obtaining the current time.
+ */
+ static timeSource: TimeSource;
+ /**
+ * Current date+time in local time (derived from DateTime.timeSource.now()).
+ */
+ static nowLocal(): DateTime;
+ /**
+ * Current date+time in UTC time (derived from DateTime.timeSource.now()).
+ */
+ static nowUtc(): DateTime;
+ /**
+ * Current date+time in the given time zone (derived from DateTime.timeSource.now()).
+ * @param timeZone The desired time zone.
+ */
+ static now(timeZone: TimeZone): DateTime;
+ /**
+ * Constructor. Creates current time in local timezone.
+ */
+ constructor();
+ /**
+ * Constructor
+ * @param isoString String in ISO 8601 format. Instead of ISO time zone,
+ * it may include a space and then and IANA time zone.
+ * e.g. "2007-04-05T12:30:40.500" (no time zone, naive date)
+ * e.g. "2007-04-05T12:30:40.500+01:00" (UTC offset without daylight saving time)
+ * or "2007-04-05T12:30:40.500Z" (UTC)
+ * or "2007-04-05T12:30:40.500 Europe/Amsterdam" (IANA time zone, with daylight saving time if applicable)
+ * @param timeZone if given, the date in the string is assumed to be in this time zone.
+ * Note that it is NOT CONVERTED to the time zone. Useful
+ * for strings without a time zone
+ */
+ constructor(isoString: string, timeZone?: TimeZone);
+ /**
+ * Constructor. You provide a date, then you say whether to take the
+ * date.getYear()/getXxx methods or the date.getUTCYear()/date.getUTCXxx methods,
+ * and then you state which time zone that date is in.
+ *
+ * @param date A date object.
+ * @param getters Specifies which set of Date getters contains the date in the given time zone: the
+ * Date.getXxx() methods or the Date.getUTCXxx() methods.
+ * @param timeZone The time zone that the given date is assumed to be in (may be null for unaware dates)
+ */
+ constructor(date: Date, getFuncs: DateFunctions, timeZone?: TimeZone);
+ /**
+ * Constructor. Note that unlike JavaScript dates we require fields to be in normal ranges.
+ * Use the add(duration) or sub(duration) for arithmetic.
+ * @param year The full year (e.g. 2014)
+ * @param month The month [1-12] (note this deviates from JavaScript Date)
+ * @param day The day of the month [1-31]
+ * @param hour The hour of the day [0-24)
+ * @param minute The minute of the hour [0-59]
+ * @param second The second of the minute [0-59]
+ * @param millisecond The millisecond of the second [0-999]
+ * @param timeZone The time zone, or null (for unaware dates)
+ */
+ constructor(year: number, month: number, day: number, hour?: number, minute?: number, second?: number, millisecond?: number, timeZone?: TimeZone);
+ /**
+ * Constructor
+ * @param unixTimestamp milliseconds since 1970-01-01T00:00:00.000
+ * @param timeZone the time zone that the timestamp is assumed to be in (usually UTC).
+ */
+ constructor(unixTimestamp: number, timeZone?: TimeZone);
+ /**
+ * @return a copy of this object
+ */
+ clone(): DateTime;
+ /**
+ * @return The time zone that the date is in. May be null for unaware dates.
+ */
+ zone(): TimeZone;
+ /**
+ * @return the offset w.r.t. UTC in minutes. Returns 0 for unaware dates and for UTC dates.
+ */
+ offset(): number;
+ /**
+ * @return The full year e.g. 2014
+ */
+ year(): number;
+ /**
+ * @return The month 1-12 (note this deviates from JavaScript Date)
+ */
+ month(): number;
+ /**
+ * @return The day of the month 1-31
+ */
+ day(): number;
+ /**
+ * @return The hour 0-23
+ */
+ hour(): number;
+ /**
+ * @return the minutes 0-59
+ */
+ minute(): number;
+ /**
+ * @return the seconds 0-59
+ */
+ second(): number;
+ /**
+ * @return the milliseconds 0-999
+ */
+ millisecond(): number;
+ /**
+ * @return Milliseconds since 1970-01-01T00:00:00.000Z
+ */
+ unixUtcMillis(): number;
+ /**
+ * @return The full year e.g. 2014
+ */
+ utcYear(): number;
+ /**
+ * @return The UTC month 1-12 (note this deviates from JavaScript Date)
+ */
+ utcMonth(): number;
+ /**
+ * @return The UTC day of the month 1-31
+ */
+ utcDay(): number;
+ /**
+ * @return The UTC hour 0-23
+ */
+ utcHour(): number;
+ /**
+ * @return The UTC minutes 0-59
+ */
+ utcMinute(): number;
+ /**
+ * @return The UTC seconds 0-59
+ */
+ utcSecond(): number;
+ /**
+ * @return The UTC milliseconds 0-999
+ */
+ utcMillisecond(): number;
+ /**
+ * Convert this date to the given time zone (in-place).
+ * Throws if this date does not have a time zone.
+ * @return this (for chaining)
+ */
+ convert(zone?: TimeZone): DateTime;
+ /**
+ * Returns this date converted to the given time zone.
+ * Unaware dates can only be converted to unaware dates (clone)
+ * For unaware dates, an exception is thrown
+ * @param zone The new time zone. This may be null to create unaware date.
+ * @return The converted date
+ */
+ toZone(zone?: TimeZone): DateTime;
+ /**
+ * Convert to JavaScript date with the zone time in the getX() methods.
+ * Unless the timezone is local, the Date.getUTCX() methods will NOT be correct.
+ */
+ toDate(): Date;
+ /**
+ * Add a time duration. Note that this simply adds a number
+ * of milliseconds to UTC and converts back to zone(),
+ * so in the presence of e.g. leap seconds there may be a
+ * shift in the seconds field if you add an hour.
+ * There is not DST handling and no leap second handling.
+ * @return this + duration
+ */
+ add(duration: Duration): DateTime;
+ /**
+ * Add an amount of time to UTC, taking leap seconds etc into account.
+ * Adding e.g. 1 hour will increment the utcHour() field
+ * date by one. In case of DST changes, the local hour() field
+ * may not increase or increase by 2 hours. So if you add a month, the
+ * local time may vary by an hour. There will not be a shift
+ * in seconds due to leap seconds.
+ */
+ add(amount: number, unit: TimeUnit): DateTime;
+ /**
+ * Add an amount of time to the zone time, as regularly as possible.
+ * Adding e.g. 1 hour will increment the hour() field of the zone
+ * date by one. In case of DST changes, the utcHour() field may
+ * increase by 1 or increase by 2. Adding a day will leave the time portion
+ * intact. However, adding an hour around a forward DST change adds two hours,
+ * since there is a zone time (2AM in Holland) that does not exist.
+ */
+ addLocal(amount: number, unit: TimeUnit): DateTime;
+ /**
+ * Same as add(-1*duration);
+ */
+ sub(duration: Duration): DateTime;
+ /**
+ * Same as add(-1*amount, unit);
+ */
+ sub(amount: number, unit: TimeUnit): DateTime;
+ /**
+ * Same as addLocal(-1*amount, unit);
+ */
+ subLocal(amount: number, unit: TimeUnit): DateTime;
+ /**
+ * Time difference between two DateTimes
+ * @return this - other
+ */
+ diff(other: DateTime): Duration;
+ /**
+ * @return True iff (this < other)
+ */
+ lessThan(other: DateTime): boolean;
+ /**
+ * @return True iff (this <= other)
+ */
+ lessEqual(other: DateTime): boolean;
+ /**
+ * @return True iff this and other represent the same time in UTC
+ */
+ equals(other: DateTime): boolean;
+ /**
+ * @return True iff this and other represent the same time and
+ * have the same zone
+ */
+ identical(other: DateTime): boolean;
+ /**
+ * @return True iff this > other
+ */
+ greaterThan(other: DateTime): boolean;
+ /**
+ * @return True iff this >= other
+ */
+ greaterEqual(other: DateTime): boolean;
+ /**
+ * Proper ISO 8601 format string with any IANA zone converted to ISO offset
+ * E.g. "2014-01-01T23:15:33+01:00" for Europe/Amsterdam
+ */
+ toIsoString(): string;
+ /**
+ * Modified ISO 8601 format string with IANA name if applicable.
+ * E.g. "2014-01-01T23:15:33.000 Europe/Amsterdam"
+ */
+ toString(): string;
+ /**
+ * Modified ISO 8601 format string in UTC without time zone info
+ */
+ toUtcString(): string;
+ }
+ /**
+ * Specifies how the period should repeat across the day
+ * during DST changes.
+ */
+ export enum PeriodDst {
+ /**
+ * Keep repeating in similar intervals measured in UTC,
+ * unaffected by Daylight Saving Time.
+ * E.g. a repetition of one hour will take one real hour
+ * every time, even in a time zone with DST.
+ * Leap seconds, leap days and month length
+ * differences will still make the intervals different.
+ */
+ RegularIntervals = 0,
+ /**
+ * Ensure that the time at which the intervals occur stay
+ * at the same place in the day, local time. So e.g.
+ * a period of one day, starting at 8:05AM Europe/Amsterdam time
+ * will always start at 8:05 Europe/Amsterdam. This means that
+ * in UTC time, some intervals will be 25 hours and some
+ * 23 hours during DST changes.
+ * Another example: an hourly interval will be hourly in local time,
+ * skipping an hour in UTC for a DST backward change.
+ */
+ RegularLocalTime = 1,
+ }
+ /**
+ * Convert a PeriodDst to a string: "regular intervals" or "regular local time"
+ */
+ export function periodDstToString(p: PeriodDst): string;
+ /**
+ * Repeating time period: consists of a starting point and
+ * a time length. This class accounts for leap seconds and leap days.
+ */
+ export class Period {
+ /**
+ * Constructor
+ * LIMITATION: if dst equals RegularLocalTime, and unit is Second, Minute or Hour,
+ * then the amount must be a factor of 24. So 120 seconds is allowed while 121 seconds is not.
+ * This is due to the enormous processing power required by these cases. They are not
+ * implemented and you will get an assert.
+ *
+ * @param start The start of the period. If the period is in Months or Years, and
+ * the day is 29 or 30 or 31, the results are maximised to end-of-month.
+ * @param amount The amount of units.
+ * @param unit The unit.
+ * @param dst Specifies how to handle Daylight Saving Time. Not relevant
+ * if the time zone of the start datetime does not have DST.
+ */
+ constructor(start: DateTime, amount: number, unit: TimeUnit, dst: PeriodDst);
+ /**
+ * The start date
+ */
+ start(): DateTime;
+ /**
+ * The amount of units
+ */
+ amount(): number;
+ /**
+ * The unit
+ */
+ unit(): TimeUnit;
+ /**
+ * The dst handling mode
+ */
+ dst(): PeriodDst;
+ /**
+ * The first occurrence of the period greater than
+ * the given date. The given date need not be at a period boundary.
+ * Pre: the fromdate and startdate must either both have timezones or not
+ * @param fromDate: the date after which to return the next date
+ * @return the first date matching the period after fromDate, given
+ * in the same zone as the fromDate.
+ */
+ findFirst(fromDate: DateTime): DateTime;
+ /**
+ * Returns the next timestamp in the period. The given timestamp must
+ * be at a period boundary, otherwise the answer is incorrect.
+ * This function has MUCH better performance than findFirst.
+ * Returns the datetime "count" times away from the given datetime.
+ * @param prev Boundary date. Must have a time zone (any time zone) iff the period start date has one.
+ * @param count Optional, must be >= 1 and whole.
+ * @return (prev + count * period), in the same timezone as prev.
+ */
+ findNext(prev: DateTime, count?: number): DateTime;
+ /**
+ * Returns an ISO duration string
+ * P[n]Y[n]M[n]DT[n]H[n]M[n][.n]S or P[n]W
+ */
+ toIsoString(): string;
+ /**
+ * A string representation e.g.
+ * "10 years, starting at 2014-03-01T12:00:00 Europe/Amsterdam keeping regular intervals".
+ */
+ toString(): string;
+ }
+}
+