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Check the Browser compatibility table carefully before using this in production.

The expirationTime read-only property of the PushSubscription interface returns a DOMHighResTimeStamp of the subscription expiration time associated with the push subscription, if there is one, oor null otherwise.


var expirationTime = pushSubscription.expirationTime


A DOMHighResTimeStamp.


Specification Status Comment
Push API
The definition of 'expirationTime' in that specification.
Working Draft Initial definition.

Browser Compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 60 (Yes) ? ? 47 ?
Feature Android Webview Chrome for Android Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support 60 60 (Yes) ? ? ? 47 ?

Document Tags and Contributors

 Contributors to this page: libbymc, jpmedley
 Last updated by: libbymc,