Chronometer is a stopwatch. The last two digits in 00:00.00 are hundredths of a second, not tenths.
Time two short laps
Press Start and wait briefly. The display changes from 00:00.00. Press Lap to save the current total elapsed time as Lap 1. Wait again and press Lap: Lap 2 appears above Lap 1, showing the later total, not just the time since the first lap. Press Pause; the clock stops. Press Resume to continue from that value, or Reset to clear both the time and the laps.
A lap can be recorded even before starting, in which case it reads 00:00.00. The stopwatch uses the browser’s monotonic clock, but display refresh can pause while a tab is in the background. Do not rely on it as a certified timing device, and record your results elsewhere before closing the page.
Where your input goes
Processing runs in your browser. The tool does not upload your input to ilham.dev.
Related guide
For more background, read Dates, Timestamps, and Time Zones.
Questions you might have
- Does it keep running if I switch tabs?
- Yes. The elapsed time is computed from a clock reading rather than by counting ticks, so a backgrounded tab cannot make it drift.