Get date time for a specific time zone using JavaScript

Question

It seems that JavaScript's Date() function can only return local date and time. Is there anyway to get time for a specific time zone, e.g., GMT-9?

Combining @Esailija and @D3mon-1stVFW, I figured it out: you need to have two time zone offset, one for local time and one for destination time, here is the working code:

var today = new Date();  
var localoffset = -(today.getTimezoneOffset()/60);
var destoffset = -4; 

var offset = destoffset-localoffset;
var d = new Date( new Date().getTime() + offset * 3600 * 1000)

An example is here: http://jsfiddle.net/BBzyN/3/

You don't need to do this at all. Please read my comments about using UTC methods. — Esailija
– Esailija, Commented Jun 20, 2012 at 17:25
possible duplicate of Convert date to another timezone in javascript — Jonathan
– Jonathan, Commented Feb 3, 2014 at 22:50

E. Karim · Accepted Answer · 2020-09-14 15:34:07Z

42

You can do this in one line:

let d = new Date(new Date().toLocaleString("en-US", {timeZone: "timezone id"})); // timezone ex: Asia/Jerusalem

edited Sep 14, 2020 at 15:34

answered Sep 14, 2019 at 0:47

E. Karim

7907 silver badges14 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Otto G Over a year ago

This is a much better answer than the accepted one, at least these days when all modern browsers support it, as specifying a time zone by name will presumably take daylight savings time into account. (Since different time zones switch on different dates, or do not use DST at all, a simple offset is not enough.)

Dheeraj Vepakomma Over a year ago

It's better to use undefined for the locale instead of hard-coding to en-US.

Gatsbimantico · Accepted Answer · 2017-11-10 16:34:26Z

31

var offset = -8;
new Date( new Date().getTime() + offset * 3600 * 1000).toUTCString().replace( / GMT$/, "" )

"Wed, 20 Jun 2012 08:55:20"

<script>
  var offset = -8;

  document.write(
    new Date(
      new Date().getTime() + offset * 3600 * 1000
    ).toUTCString().replace( / GMT$/, "" )
  );
</script>

edited Nov 10, 2017 at 16:34

Gatsbimantico

1,83215 silver badges33 bronze badges

answered Jun 20, 2012 at 16:56

Esailija

140k24 gold badges280 silver badges328 bronze badges

9 Comments

Yang Over a year ago

var offset = -8; var d = new Date( new Date() + offset * 3600 * 1000) alert(d); would give me incorrect time of PST (shows 03:06 instead of 10:06 now), anything wrong here?

Esailija Over a year ago

@Yang yea, use the .getTime() patch in my newest edit. I didn't use a variable in my tests and the "+" turned it into a string concatenation. Oh and take the time in UTC which is emulating the different timezone. So the correct one would be .toUTCString not .toString (which is what alert(d) does)

Esailija Over a year ago

@Yang you can use this solution fine as long as you use the UTC methods getUTCHours(), getUTCMinutes(), toUTCString() etc...the problem with alert(d) is that it does alert(d.toString(), where as you want toUTCString in this case.

Patrick Roberts Over a year ago

Does this take into account daylight savings in both local and destination offsets?

Marenthyu Over a year ago

As Patrick mentioned, this gets iffy with leap seconds and other timezone schenanigans like DLST. I highly recommend E. karim's solution over this one.

|

Sully · Accepted Answer · 2012-06-20 16:50:25Z

6

var today = new Date();  
var offset = -(today.getTimezoneOffset()/60);

answered Jun 20, 2012 at 16:50

Sully

15k5 gold badges56 silver badges83 bronze badges

Comments

kennebec · Accepted Answer · 2012-06-20 16:55:06Z

-1

You can always get GMT time (so long as the client's clock is correct).

To display a date in an arbitrary time-zone, construct a string from the UTC hours, minutes, and seconds after adding the offset.

answered Jun 20, 2012 at 16:55

kennebec

105k32 gold badges109 silver badges127 bronze badges

Comments

hdogan · Accepted Answer · 2013-05-03 09:26:53Z

-1

There is simple library for working on timezones easily called TimezoneJS can be found at https://github.com/mde/timezone-js.

answered May 3, 2013 at 9:26

hdogan

9436 silver badges6 bronze badges

1 Comment

Allan Deamon Over a year ago

It's deprecated

Collectives™ on Stack Overflow

Get date time for a specific time zone using JavaScript

5 Answers 5

2 Comments

9 Comments

Comments

Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

2 Comments

9 Comments

Comments

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related