Time · Free forever
Stopwatch & countdown
Precise stopwatch with lap times and a flexible countdown timer. Runs entirely in your browser.
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Frequently asked questions
How precise is the stopwatch?
The stopwatch uses Date.now() with a 30-millisecond refresh, accurate to about a hundredth of a second.
Does it record laps?
Yes. Click Lap while running to log a split time. Lap history is kept in memory for the session.
Will the timer keep running in another tab?
Yes, intervals continue across tabs, though some browsers may throttle background timers for power saving.