TimeStopwatch with Lap Timer
Hundredths of a second, lap recording, copy laps to clipboard, background accurate.
00:00.00
Laps
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About this stopwatch
This stopwatch uses Date.now() to measure elapsed time accurately, even when the browser tab is not active. It updates at 50ms intervals to show hundredths of a second.
How to use it
- Click Start to begin counting.
- Click Lap to record the current split time without stopping.
- Click Pause to pause. Click Start again to resume from the same point.
- Click Reset to clear everything and go back to zero.
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Common uses
- Running and cycling lap splits
- Timed sports drills and fitness tests
- Recording split times for rowing, swimming, or track
- Timing tasks or processes for productivity analysis
FAQ
- Can I record lap times?
- Yes — click the Lap button during a running stopwatch. All lap times are listed below the display.
- Is the stopwatch accurate?
- Accurate to the hundredth of a second. Uses
Date.now()so it stays accurate even when the tab is in the background. - Can I copy my lap times?
- Click Copy Laps to copy all lap times to your clipboard as plain text.
- Does it pause when I switch tabs?
- No — the stopwatch continues running in the background. Switching tabs does not affect the count.