moment().utcOffset(); moment().utcOffset(Number|String); moment().utcOffset(Number|String, Boolean);


Get or set the UTC offset in minutes.

Note: Unlike moment.fn.zone this function returns the real offset from UTC, not the reverse offset (as returned by Date.prototype.getTimezoneOffset).

Getting the utcOffset of the current object:

moment().utcOffset(); // (-240, -120, -60, 0, 60, 120, 240, etc.)

Setting the UTC offset by supplying minutes. The offset is set on the moment object that utcOffset() is called on. If you are wanting to set the offset globally, try using moment-timezone. Note that once you set an offset, it's fixed and won't change on its own (i.e there are no DST rules). If you want an actual time zone -- time in a particular location, like America/Los_Angeles, consider moment-timezone.

moment().utcOffset(120);

If the input is less than 16 and greater than -16, it will interpret your input as hours instead.

// these are equivalent
moment().utcOffset(8);  // set hours offset
moment().utcOffset(480);  // set minutes offset (8 * 60)

It is also possible to set the UTC offset from a string.

// these are equivalent
moment().utcOffset("+08:00");
moment().utcOffset(8);
moment().utcOffset(480);

moment#utcOffset will search the string for the first match of +00:00 +0000 -00:00 -0000 Z, so you can even pass an ISO8601 formatted string and the moment will be changed to that UTC offset.

Note that the string, if not 'Z', is required to start with the + or - character.

moment().utcOffset("2013-03-07T07:00:00+08:00");

The utcOffset function has an optional second parameter which accepts a boolean value indicating whether to keep the existing time of day.

One use of this feature is if you want to construct a moment with a specific time zone offset using only numeric input values:

moment([2016, 0, 1, 0, 0, 0]).utcOffset(-5, true) // Equivalent to "2016-01-01T00:00:00-05:00"