coderef

Intl.Locale infoBaseline · Newly available

The getter methods of the Intl.Locale API provide supplemental information about a Unicode locale, such as the locale's calendar (for example, the first day in a week or the weekend start day), writing direction, 12- or 24-hour cycles, and numbering system.

Works in the latest version of every major browser, but older devices may not support it yet. Baseline since Jul 21, 2026.

How to use ↓Compare browsers

Browser support

DesktopChrome
1–129Not supported
130+Supportedsince Oct 15, 2024
Current: 155
Edge
12–129Not supported
130+Supportedsince Oct 17, 2024
Current: 154
Firefox
1–152Not supported
153+Supportedsince Jul 21, 2026
Current: 157
Safari
1–16.6Not supported
17+Supportedsince Sep 18, 2023
Current: 27
MobileChrome Android
18–129Not supported
130+Supportedsince Oct 15, 2024
Current: 155
Firefox Android
4–152Not supported
153+Supportedsince Jul 21, 2026
Current: 157
Safari iOS
1–16.6Not supported
17+Supportedsince Sep 18, 2023
Current: 27

How to use

Every current browser supports this, but it only became Baseline on Jul 21, 2026. Use it as a progressive enhancement, or keep a fallback if you support older devices.

Example

Full syntax and examples are on MDN: getCalendars.

Feature detection

JS · check before using
if ("Locale" in Intl || ("prototype" in Intl && "Locale" in Intl.prototype)) {
  // Intl.Locale is available
}

Documentation (MDN)

Specification

Sub-features

Support for each part of the feature (7). The overall table above shows when the whole feature works.

Sub-featureChromeEdgeFirefoxSafariChrome AndroidFirefox AndroidSafari iOS
Intl.Locale.getCalendars1301301531713015317
Intl.Locale.getCollations1301301531713015317
Intl.Locale.getHourCycles1301301531713015317
Intl.Locale.getNumberingSystems1301301531713015317
Intl.Locale.getTextInfo1301301531713015317
Intl.Locale.getTimeZones1301301531713015317
Intl.Locale.getWeekInfo1301301531713015317