Intl.DurationFormat

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The Intl.DurationFormat object enables language-sensitive duration formatting.

Constructor

Intl.DurationFormat()

Creates a new Intl.DurationFormat object.

Static methods

Intl.DurationFormat.supportedLocalesOf()

Returns an array containing those of the provided locales that are supported without having to fall back to the runtime's default locale.

Instance properties

These properties are defined on Intl.DurationFormat.prototype and shared by all Intl.DurationFormat instances.

Intl.DurationFormat.prototype.constructor

The constructor function that created the instance object. For Intl.DurationFormat instances, the initial value is the Intl.DurationFormat constructor.

Intl.DurationFormat.prototype[Symbol.toStringTag]

The initial value of the [Symbol.toStringTag] property is the string "Intl.DurationFormat". This property is used in Object.prototype.toString().

Instance methods

Intl.DurationFormat.prototype.format()

Getter function that formats a duration according to the locale and formatting options of this DurationFormat object.

Intl.DurationFormat.prototype.formatToParts()

Returns an Array of objects representing the formatted duration in parts.

Intl.DurationFormat.prototype.resolvedOptions()

Returns a new object with properties reflecting the locale and formatting options computed during initialization of the object.

Examples

Using Intl.DurationFormat

The examples below show how to use the Intl.DurationFormat object to format a duration object with various locales and styles.

js
const duration = {
  hours: 1,
  minutes: 46,
  seconds: 40,
};

// With style set to "long" and locale "fr-FR"
new Intl.DurationFormat("fr-FR", { style: "long" }).format(duration);
// "1 heure, 46 minutes et 40 secondes"

// With style set to "short" and locale "en"
new Intl.DurationFormat("en", { style: "short" }).format(duration);
// "1 hr, 46 min and 40 sec"

// With style set to "narrow" and locale "pt"
new Intl.DurationFormat("pt", { style: "narrow" }).format(duration);
// "1h 46min 40s"

Specifications

Specification
Intl.DurationFormat
# durationformat-objects

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
DurationFormat
DurationFormat() constructor
format
formatToParts
resolvedOptions
supportedLocalesOf

Legend

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Full support
Full support
In development. Supported in a pre-release version.
In development. Supported in a pre-release version.
No support
No support

See also