How to Convert Date to Another Timezone in JavaScript?

Last Updated : 06 Dec, 2024

Converting a date to another timezone in JavaScript means adjusting the local date and time to match the time in a different timezone. This ensures that the displayed time aligns with the selected timezone, often using built-in methods or external libraries.

1. Using Intl.DateTimeFormat() and format() Methods

Intl.DateTimeFormat() in JavaScript allows formatting dates according to a specific locale and timezone. By using the format() method, you can convert a date into a human-readable string, adapting it to the desired timezone and regional formatting conventions.

Syntax

intlDateObj = new Intl.DateTimeFormat('en-US', {
    timeZone: "America/New_York"
});
usaTime = intlDateObj.format(date);

JavaScript

let date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));  console.log('Given IST datetime: ', date);  let intlDateObj = new Intl.DateTimeFormat('en-US', {     timeZone: "America/New_York" });  let usaTime = intlDateObj.format(date); console.log('USA date: ', usaTime);

Output

Given IST datetime:  2012-12-20T03:00:00.000Z USA date:  12/19/2012

2. Using toLocaleString() Method

The toLocaleString() method is used to return a string that formats the date according to the locale and options specified. It will convert the date on which the method is used from one timezone to another.

Syntax

usaTime = date.toLocaleString("en-US", {timeZone: "America/New_York"});

JavaScript

let date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0)); console.log('Given IST datetime: ', date);  let usaTime = date.toLocaleString("en-US", {     timeZone: "America/New_York" });  console.log('USA datetime: ', usaTime);

Output

Given IST datetime:  2012-12-20T03:00:00.000Z USA datetime:  12/19/2012, 10:00:00 PM

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