Intl.Locale.prototype.getTimeZones()

Baseline Newly available

This feature works across the latest devices and browser versions. This feature might not work in older devices or browser versions. It's been available across browsers since July 2026.

The getTimeZones() method of Intl.Locale instances returns a list of supported time zones for this locale.

Note: In some versions of some browsers, this method was implemented as an accessor property called timeZones. However, because it returns a new array on each access, it is now implemented as a method to prevent the situation of locale.timeZones === locale.timeZones returning false. Check the browser compatibility table for details.

Syntax

getTimeZones()

Parameters

None.

Return value

An array of strings representing supported time zones for the associated Locale, where each value is an IANA time zone canonical name, sorted in alphabetical order. If the locale identifier does not contain a region subtag, the returned value is undefined.

Note: The standardization of Temporal requires browsers to always return the primary identifier in the IANA database, which may change over time. See time zones and offsets for more information.

Examples

Obtaining supported time zones

List supported time zones for a given Locale.

const arEG = new Intl.Locale("ar-EG");
console.log(arEG.getTimeZones()); // ["Africa/Cairo"]

const jaJP = new Intl.Locale("ja-JP");
console.log(jaJP.getTimeZones()); // ["Asia/Tokyo"]

const ar = new Intl.Locale("ar");
console.log(ar.getTimeZones()); // undefined

Specifications

Specification
Intl Locale Info Proposal # sec-Intl.Locale.prototype.getTimeZones

Browser compatibility

	Desktop					Mobile							Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS	Bun	Deno	Node.js
`getTimeZones`	130 99 Implemented as an accessor property.	130 99 Implemented as an accessor property.	153	115 85 Implemented as an accessor property.	17 15.4–preview Implemented as an accessor property.	130 99 Implemented as an accessor property.	153	86 68 Implemented as an accessor property.	17 15.4 Implemented as an accessor property.	28.0 18.0 Implemented as an accessor property.	130 99 Implemented as an accessor property.	17 15.4 Implemented as an accessor property.	1.0.0	2.1 1.19–2.6.7 Implemented as an accessor property.	24.0.0 18.0.0 Implemented as an accessor property.