How to use it
Use the stopwatch for informal task, exercise, presentation, or process timing that does not require calibrated equipment.
- Start the stopwatch and use Lap to capture the current elapsed time.
- Pause and resume as needed; paused intervals are not counted.
- Reset to clear both elapsed time and every lap.
Worked example
- Input
Start · lap at 12.34 s · lap at 20.00 s
- Output
Lap 2 total 00:20.00 · split 00:07.66
Each split is the difference between the current and previous lap totals.
Method and definitions
- performance.now() supplies monotonically increasing timestamps within the page context.
- Elapsed time is accumulated across running intervals; lap totals and splits derive from that same value.
Limits and edge cases
- Stores at most 100 laps in the current tab and displays centiseconds from millisecond measurements.
- Scheduling, hardware, and display delays make this unsuitable for laboratory, legal, or competition timing.
Privacy
Entries, dates, times, and results remain in this tab. Rigula does not upload them or add them to the URL.
Sources
