Stopwatch & Timer

How to use Stopwatch & Timer

1. Switch between Stopwatch mode (count up, with lap times) and Timer mode (count down to zero).
2. Click Start.
3. Use Lap to record split times, or let the timer sound an alarm when it reaches zero.

Frequently asked questions

Does the stopwatch keep running if I switch tabs?
Yes — it keeps timing accurately in the background as long as the browser tab stays open, and the display catches up when you return to it.

Can I set a countdown timer for a specific duration?
Yes — enter hours, minutes, and seconds in Timer mode, and it counts down and sounds an alarm when it reaches zero.

Are lap times saved after I close the page?
No — lap times are kept only for the current session; refreshing or closing the page clears them.