The Intl.RelativeTimeFormat.prototype.resolvedOptions() method returns a new object with properties reflecting the locale and relative time formatting options computed during initialization of this RelativeTimeFormat object.



Return value

A new object with properties reflecting the locale and number formatting options computed during the initialization of the given RelativeTimeFormat object.


The resulting object has the following properties:

The BCP 47 language tag for the locale actually used. If any Unicode extension values were requested in the input BCP 47 language tag that led to this locale, the key-value pairs that were requested and are supported for this locale are included in locale.
The length of the internationalized message. Possible values are:
  • "long" (default, e.g., in 1 month)
  • "short" (e.g., in 1 mo.),
  • or "narrow" (e.g., in 1 mo.). The narrow style could be similar to the short style for some locales.
The format of output message. Possible values are:
  • "always" (default, e.g., 1 day ago),
  • or "auto" (e.g., yesterday). The "auto" value allows to not always have to use numeric values in the output.
The value requested using the Unicode extension key "nu" or filled in as a default.


Using the resolvedOptions method

var de = new Intl.RelativeTimeFormat('de-DE');
var usedOptions = de.resolvedOptions();

usedOptions.locale;          // "de-DE";           // "long"
usedOptions.numeric;         // "always"
usedOptions.numberingSystem; // "latn"


Specification Status Comment
Intl.RelativeTime proposal Stage 3  

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
resolvedOptionsChrome Full support 71Edge No support NoFirefox Full support 65IE No support NoOpera ? Safari No support NoWebView Android Full support 71Chrome Android Full support 71Edge Mobile No support NoFirefox Android Full support 65Opera Android ? Safari iOS No support NoSamsung Internet Android ? nodejs No support No


Full support  
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Compatibility unknown  
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See also

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Last updated by: battaglr,