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Stopwatch

Start, lap, stop. Space to start/stop, L for laps.

00:00.00
LapLap timeTotal

Keyboard shortcuts

Timing uses your device’s high-resolution clock, so it stays accurate over hours.

Why this one?

Related tools

FAQ

How accurate is it?

It reads your device’s high-resolution clock and displays hundredths of a second. Human reaction time (~0.2 s) is a far bigger factor.

Does it keep running in the background?

Yes — elapsed time is based on the clock, so switching tabs doesn’t lose time.