Intl.Locale.prototype.timeZones

The Intl.Locale.prototype.timeZones property is an accessor property which returns an array of supported time zones for a chosen Locale.

Returns an array with supported time zones for the associated Locale, returned time zones represents an IANA time zone.

List supported time zones for a given Locale.

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

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

let ar = new Intl.Locale("ar");
console.log(ar.hourCycles); // logs undefined

• Intl.Locale
• IANA time zone database