A stopwatch accurate to 1/100 second with lap records, plus an alarm that rings at a clock time you set. No install — it runs in the browser and marks your fastest and slowest split as you go.
Elapsed time is measured from performance.now() differences, so the clock never jumps backwards if the system time is adjusted.
The alarm rings inside the page while this tab is open — no notification permission involved. For several countdowns at once, use the multi timer instead.
«Split» is the time since the previous lap; «Total» is the time from the start up to that lap.
Yes. The display may refresh more slowly, but the elapsed time is computed as a difference from the start, so the numbers stay correct.
Check that the tab is still open and the device isn't muted. Audio is unlocked by the tap on «Set alarm», so if you reloaded the page you need to set it again.