Since March 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is available in Web Workers.
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, or null otherwise.
A DOMHighResTimeStamp or null.
| Specification |
|---|
| Push API> # dom-pushsubscription-expirationtime> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
expirationTime |
60 | 17 | 96 | 47 | 16Notifications are supported on macOS Ventura and later. |
60 | 96 | 44 | 16.4Notifications are supported in web apps saved to the home screen. |
8.0 | No | NoNotifications are supported in web apps saved to the home screen. |
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https://developer.mozilla.org/en-US/docs/Web/API/PushSubscription/expirationTime