The value of this constant is equivalent to 00:00:00.0000000 UTC, January 1, 1970, in the Gregorian calendar. DateTime.UnixEpoch defines the point in time when Unix time is equal to 0.

Year number

read only

Gets the year component of the date represented by this instance.

Constructors:

New(ticks: number) :

Initializes a new instance of the DateTime structure to a specified number of ticks.

Parameters:

Name	Type	Default	Summary
ticks	number		A date and time expressed in the number of 100-nanosecond intervals that have elapsed since January 1, 0001 at 00:00:00.000 in the Gregorian calendar.

New(date: DateOnly, time: TimeOnly) :

Initializes a new instance of the DateTime structure to the specified DateOnly and TimeOnly. The new instance will have the DateTimeKind.Unspecified kind.

Parameters:

Name	Type	Default	Summary
date	DateOnly		The date part.
time	TimeOnly		The time part.

New(ticks: number, kind: DateTimeKind) :

Initializes a new instance of the DateTime structure to a specified number of ticks and to Coordinated Universal Time (UTC) or local time.

Parameters:

Name	Type	Default	Summary
ticks	number		A date and time expressed in the number of 100-nanosecond intervals that have elapsed since January 1, 0001 at 00:00:00.000 in the Gregorian calendar.
kind	DateTimeKind		One of the enumeration values that indicates whether ticks specifies a local time, Coordinated Universal Time (UTC), or neither.

New(date: DateOnly, time: TimeOnly, kind: DateTimeKind) :

Initializes a new instance of the DateTime structure to the specified DateOnly and TimeOnly and respecting the specified DateTimeKind.

Parameters:

Name	Type	Default	Summary
date	DateOnly		The date part.
time	TimeOnly		The time part.
kind	DateTimeKind		One of the enumeration values that indicates whether date and time specify a local time, Coordinated Universal Time (UTC), or neither.

New(year: number, month: number, day: number) :

Initializes a new instance of the DateTime structure to the specified year, month, and day.

Parameters:

Name	Type	Default	Summary
year	number		The year (1 through 9999).
month	number		The month (1 through 12).
day	number		The day (1 through the number of days in month).

New(year: number, month: number, day: number, hour: number, minute: number, second: number) :

Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, and second.

Parameters:

Name	Type	Default	Summary
year	number		The year (1 through 9999).
month	number		The month (1 through 12).
day	number		The day (1 through the number of days in month).
hour	number		The hours (0 through 23).
minute	number		The minutes (0 through 59).
second	number		The seconds (0 through 59).

New(year: number, month: number, day: number, hour: number, minute: number, second: number, kind: DateTimeKind) :

Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, and Coordinated Universal Time (UTC) or local time.

Parameters:

Name	Type	Default	Summary
year	number		The year (1 through 9999).
month	number		The month (1 through 12).
day	number		The day (1 through the number of days in month).
hour	number		The hours (0 through 23).
minute	number		The minutes (0 through 59).
second	number		The seconds (0 through 59).
kind	DateTimeKind		One of the enumeration values that indicates whether year, month, day, hour, minute and second specify a local time, Coordinated Universal Time (UTC), or neither.

New(year: number, month: number, day: number, hour: number, minute: number, second: number, millisecond: number) :

Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, and millisecond.

Parameters:

Name	Type	Default	Summary
year	number		The year (1 through 9999).
month	number		The month (1 through 12).
day	number		The day (1 through the number of days in month).
hour	number		The hours (0 through 23).
minute	number		The minutes (0 through 59).
second	number		The seconds (0 through 59).
millisecond	number		The milliseconds (0 through 999).

New(year: number, month: number, day: number, hour: number, minute: number, second: number, millisecond: number, kind: DateTimeKind) :

Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, millisecond, and Coordinated Universal Time (UTC) or local time.

Parameters:

Name	Type	Default	Summary
year	number		The year (1 through 9999).
month	number		The month (1 through 12).
day	number		The day (1 through the number of days in month).
hour	number		The hours (0 through 23).
minute	number		The minutes (0 through 59).
second	number		The seconds (0 through 59).
millisecond	number		The milliseconds (0 through 999).
kind	DateTimeKind		One of the enumeration values that indicates whether year, month, day, hour, minute, second, and millisecond specify a local time, Coordinated Universal Time (UTC), or neither.

New(year: number, month: number, day: number, hour: number, minute: number, second: number, millisecond: number, microsecond: number) :

Initializes a new instance of the DateTime structure to the specified year, month, day, hour, minute, second, millisecond, and Coordinated Universal Time (UTC) or local time for the specified calendar.

Parameters:

Name	Type	Default	Summary
year	number		The year (1 through 9999).
month	number		The month (1 through 12).
day	number		The day (1 through the number of days in month).
hour	number		The hours (0 through 23).
minute	number		The minutes (0 through 59).
second	number		The seconds (0 through 59).
millisecond	number		The milliseconds (0 through 999).
microsecond	number		The microseconds (0 through 999).

New(year: number, month: number, day: number, hour: number, minute: number, second: number, millisecond: number, microsecond: number, kind: DateTimeKind) :

Parameters:

Name	Type	Default	Summary
year	number		The year (1 through 9999).
month	number		The month (1 through 12).
day	number		The day (1 through the number of days in month).
hour	number		The hours (0 through 23).
minute	number		The minutes (0 through 59).
second	number		The seconds (0 through 59).
millisecond	number		The milliseconds (0 through 999).
microsecond	number		The microseconds (0 through 999).
kind	DateTimeKind		One of the enumeration values that indicates whether year, month, day, hour, minute, second, and millisecond specify a local time, Coordinated Universal Time (UTC), or neither.

Methods:

Add(value: TimeSpan) : DateTime

Returns a new DateTime that adds the value of the specified TimeSpan to the value of this instance.

Parameters:

Name	Type	Default	Summary
value	TimeSpan		A positive or negative time interval.

Returns:DateTime

AddDays(value: number) : DateTime

Returns a new DateTime that adds the specified number of days to the value of this instance.

Parameters:

Name	Type	Default	Summary
value	number		A number of whole and fractional days. The value parameter can be negative or positive.

Returns:DateTime

AddHours(value: number) : DateTime

Returns a new DateTime that adds the specified number of hours to the value of this instance.

Parameters:

Name	Type	Default	Summary
value	number		A number of whole and fractional hours. The value parameter can be negative or positive.

Returns:DateTime

AddMicroseconds(value: number) : DateTime

Returns a new DateTime that adds the specified number of microseconds to the value of this instance.

Parameters:

Name	Type	Default	Summary
value	number		A number of whole and fractional microseconds. The value parameter can be negative or positive. Note that this value is rounded to the nearest integer.

Returns:DateTime

AddMilliseconds(value: number) : DateTime

Returns a new DateTime that adds the specified number of milliseconds to the value of this instance.

Parameters:

Name	Type	Default	Summary
value	number		A number of whole and fractional milliseconds. The value parameter can be negative or positive. Note that this value is rounded to the nearest integer.

DateTime

New(ticks: number) :

New(date: DateOnly, time: TimeOnly) :

New(ticks: number, kind: DateTimeKind) :

New(date: DateOnly, time: TimeOnly, kind: DateTimeKind) :

New(year: number, month: number, day: number) :

New(year: number, month: number, day: number, hour: number, minute: number, second: number) :

New(year: number, month: number, day: number, hour: number, minute: number, second: number, kind: DateTimeKind) :

New(year: number, month: number, day: number, hour: number, minute: number, second: number, millisecond: number) :

New(year: number, month: number, day: number, hour: number, minute: number, second: number, millisecond: number, kind: DateTimeKind) :

New(year: number, month: number, day: number, hour: number, minute: number, second: number, millisecond: number, microsecond: number) :

New(year: number, month: number, day: number, hour: number, minute: number, second: number, millisecond: number, microsecond: number, kind: DateTimeKind) :

Add(value: TimeSpan) : DateTime

AddDays(value: number) : DateTime

AddHours(value: number) : DateTime

AddMicroseconds(value: number) : DateTime

AddMilliseconds(value: number) : DateTime

AddMinutes(value) value number

AddMonths(months) months number

AddSeconds(value) value number

AddTicks(value) value number

AddYears(value) value number

Compare(t1,t2) t1 DateTime , t2 DateTime

CompareTo(value) value Object

CompareTo(value) value DateTime

DaysInMonth(year,month) year number , month number

Deconstruct()

Deconstruct()

FromBinary(dateData) dateData number

FromFileTime(fileTime) fileTime number

FromFileTimeUtc(fileTime) fileTime number

FromOADate(d) d number

GetDateTimeFormats()

GetDateTimeFormats(format) format Char

GetTypeCode()

IsDaylightSavingTime()

IsLeapYear(year) year number

Parse(s) s string

SpecifyKind(value,kind) value DateTime , kind DateTimeKind

Subtract(value) value DateTime

Subtract(value) value TimeSpan

ToBinary()

ToFileTime()

ToFileTimeUtc()

ToLocalTime()

ToLongDateString()

ToLongTimeString()

ToOADate()

ToShortDateString()

ToShortTimeString()

ToString()

ToString(format) format string

ToUniversalTime()

TryParse(s) s string