This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The timeOrigin read-only property of the Performance interface returns the high resolution timestamp of the start time of the performance measurement.

Note: This feature is available in Web Workers.


var timeOrigin = performance.timeOrigin


A high resolution timestamp.


Specification Status Comment
High Resolution Time Level 3
The definition of 'timeOrigin' in that specification.
Editor's 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 Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 62 59 (59) ? 49 ?
Feature Android Webview Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 62 62 59.0 (59) ? 49 ?

Document Tags and Contributors

Contributors to this page: chrisdavidmills, TimothyGu, jpmedley
Last updated by: chrisdavidmills,