Stopwatch
Track elapsed time and record laps.
Elapsed time
00:00.000
Current lap 00:00.000
Ready to start.
Laps Newest first
Start the stopwatch to record your first lap.
| # | Lap | Total |
|---|
Your laps will appear here.
Stopwatch options and shortcuts
Space starts or pauses; L records a lap. Shortcuts apply when you are outside controls.
Elapsed time and laps are saved only in this browser. Reload restores them paused and excludes time away from the page. Reset / Clear deletes the saved results. CSV includes raw milliseconds.
Help & FAQ — Stopwatch
How to use
- Start the stopwatch to begin timing.
- Tap Lap to capture split times while the clock keeps running.
- Pause/resume as needed and export lap data if you want a log.
Use cases
- Time a run or activity with lap splits.
- Track task durations for planning.
Tips & FAQs
- Is it accurate for long sessions?
- Elapsed time is calculated from a high-resolution clock rather than counting callbacks. Browser and device timing limits still apply.
- Can I keep lap data?
- Elapsed time and laps are saved locally and restore paused after reload, excluding time away. Export Laps CSV includes millisecond values; Share sends only the stopwatch link.
Formats & limits
- Restored timing is paused and excludes time away from the page
- Screen wake lock and fullscreen depend on browser support
- Reset clears saved elapsed time and laps
Privacy
The stopwatch runs locally. Export Laps CSV saves your laps; Share sends a link to the stopwatch without lap data.
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Updated
11 October 2026