UTC

fun UTC(year: Int, monthIndex: Int, date: Int = definedExternally, hours: Int = definedExternally, minutes: Int = definedExternally, seconds: Int = definedExternally, milliseconds: Int = definedExternally): JsLong(source)

Returns the number of milliseconds between midnight, January 1, 1970 Universal Coordinated Time (UTC) (or GMT) and the specified date.

Parameters

year

The full year designation is required for cross-century date accuracy. If year is between 0 and 99 is used, then year is assumed to be 1900 + year.

monthIndex

The month as a number between 0 and 11 (January to December).

date

The date as a number between 1 and 31.

hours

Must be supplied if minutes is supplied. A number from 0 to 23 (midnight to 11pm) that specifies the hour.

minutes

Must be supplied if seconds is supplied. A number from 0 to 59 that specifies the minutes.

seconds

Must be supplied if milliseconds is supplied. A number from 0 to 59 that specifies the seconds.

milliseconds

A number from 0 to 999 that specifies the milliseconds.

MDN Reference