Convert date/time in GMT to EST in Javascript

Question

In Javascript, how can I convert date/time in GMT to EST irrespective of user settings?

See http://stackoverflow.com/questions/233041/javascript-world-timezone-difference-to-gmt-calculator — martin clayton, Sep 03 '10 at 21:39

score 5 · Answer 1 · edited Jul 21 '12 at 02:43

5

var tmpDate = New Date("enter any valid Date format here")

The javascript Date() function will automatically convert it to your local time.

Example:

var tmpDate = new Date("Fri Jul 21 02:00:00 GMT 2012");
alert(tmpDate);
//Result: Fri Jul 20 22:00:00 EDT 2012

Try some different values at jsfiddle: http://jsfiddle.net/R3huD/

edited Jul 21 '12 at 02:43

Kijewski

answered Jul 21 '12 at 02:14

Jim

Hello Jim, I changed you w3schools link to a jsfiddle link. W3Schools is very much hated for various reasons in the StackOverflow community, see [here](http://meta.stackoverflow.com/search?tab=relevance&q=w3schools). Also, thats probably the easiest/best approach to the problem (I use the same in a work related project). – Kijewski Jul 21 '12 at 02:32

score 1 · Answer 2 · answered Jun 15 '18 at 20:04

i was surprise to find the simplest solution.

If you have date in GMT, and when you create date in browser it always create in that time zone.

Simplest way is create date object with GMT itself and then do below

starTime.setHours(starTime.getHours()+(starTime.getTimezoneOffset()/60));

That's it. Even if you have date of future after day light saving like after November then also it will also work.

score 0 · Answer 3 · edited Aug 20 '15 at 04:42

0

all you have to do is get the time in miliseconds and then add the offset in milliseconds and then shift back to a date time object

edited Aug 20 '15 at 04:42

Community

answered Nov 17 '10 at 05:56

Daniel

1

look carefully at the code. Though the output string exactly matches the date in the target timezone, the final date object will still be in local timezone. – Praveen Lobo Nov 18 '11 at 22:58

3 Answers3