how to get timezone offset value

Question

My requirement is , i need to convert the time zone value to offset value for ex.. Asia/Dubai to +4 .. consider am intializing date in js.

var currentDate = new Date();

and it is possible to set the time zone and get the offset..

currentDate.setTimezone("Asia/Dubai");
var offsetValue=currentDate.getTimezoneOffset();

alert('offsetValue---'+offsetValue);

its not working.. page error at set time zone.. is there any other way to get the offet value? Need to consider DST too..

Best link on SO for TimeZone and daylight saving time:- stackoverflow.com/questions/2532729/… — Pranav
– Pranav, Commented Apr 25, 2012 at 5:25

Shahbaz Chishty · Accepted Answer · 2012-04-25 06:58:17Z

1

This is not a valid jquery statement

currentDate.setTimezone("Asia/Dubai");

just remove this line and you'll get the timezone offset.

answered Apr 25, 2012 at 6:58

Shahbaz Chishty

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1 Comment

A Programmer Over a year ago

hi my query is i need to convert asia/dubai to +4... please read the first line of the description

KooiInc · Accepted Answer · 2012-04-25 06:54:09Z

1

The Date object doesn't know a setTimezone method. If you want to set a Date to the 'Asia/Dubai' timezone, this could be a way:

var regionalDate = new Date;
regionalDate.setHours(regionalDate.getUTCHours()+4); //=> set to UTC+4

answered Apr 25, 2012 at 6:54

KooiInc

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3 Comments

A Programmer Over a year ago

hi my query is i need to convert asia/dubai to +4..please read the first line of the description

KooiInc Over a year ago

Well, you'll have to think of something yourself for such a conversion. There's no miraculous native timezoneconverter in javascript. It could be as easy as assigning a value to a variable called 'Dubai' (var Dubai = 4), or creating an object for different timezones (var zones = {Asia: { Dubai:4, Brunei:8, Mumbai: 5.5 }, Europe: {Amsterdam: {summer:2; winter:1} }) etc. It's up to you. See also: timeanddate.com/worldclock

KooiInc Over a year ago

@mnp: check stackoverflow.com/questions/11887934/…

mikakun · Accepted Answer · 2025-04-22 12:20:20Z

0

use locale "ia" with Intl.DateTimeFormat :

const getOffset = (tz) => Intl.DateTimeFormat("ia", {
                       timeZoneName: "shortOffset",
                       timeZone : tz
                     })
                    .formatToParts()
                    .find((i) => i.type === "timeZoneName").value // => "GMT+/-hh:mm"
                    .slice(3); //=> +/-hh:mm

console.log('Asia/Dubai', ' UTC' + getOffset('Asia/Dubai'))

// to get your user timezone :

const tz = Intl.DateTimeFormat().resolvedOptions().timeZone

console.log(tz + ' UTC' + getOffset(tz))

answered Apr 22 at 12:20

mikakun

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