How it works
Elapsed time is based on high-resolution performance timing.
Keyboard shortcut: Space starts and pauses.
Measure elapsed time.
Start, pause, reset, and record lap times with a clear browser stopwatch.
00:00.000
Laps
No laps yet.
Practical examples
- Measure elapsed time for a task or exercise.
- Record lap times while the stopwatch is running.
- Copy lap results after a session.
How to read the result
- Elapsed time uses high-resolution browser timing.
- Lap entries are newest-first and include the delta since the previous lap.
- Space toggles start and pause.
Limits and privacy notes
- Timing can pause if the browser tab is suspended.
- Laps are not saved after reload.
- Elapsed time and laps remain local in your browser and are not uploaded.
Total and delta
- Each lap shows total elapsed time.
- The delta shows time since the previous lap.
- Newest laps appear first.
Hands-on timing
- Space starts and pauses.
- Lap records the current time.
- Reset clears elapsed time and laps.
Browser timing
- High-resolution browser timing is used.
- Suspended tabs can pause updates.
- Copy laps after the session.