स्टॉपवॉच और टाइमर.

Up to 100 laps and seven days per duration. This browser timer is not calibrated timing equipment and cannot alert after the page is closed.

Elapsed timing uses a monotonic browser clock. Duration countdown tracks elapsed time rather than subtracting assumed interval ticks. No audio or notification permissions are requested.

A 60-second duration counts down from 00:01:00.