Stopwatch and Timer
A precise stopwatch with laps, plus a countdown timer — accurate to the millisecond on your own device clock.
What is the Stopwatch and Timer?
Time a run, a cooking step, or a study session with one page. The stopwatch offers Start, Pause, Reset and Lap times, and the countdown works as an online timer, counting down from any minutes and seconds you set. Both use real elapsed-time math, so they stay accurate.
How to use the Stopwatch and Timer
- For the stopwatch, press Start, then Lap for split times and Pause when you stop.
- Press Reset to clear the stopwatch and laps.
- For the timer, type minutes and seconds, then press Start timer.
- When the timer ends, a clear message appears on screen. Press Reset to set a new time.
Key features
- Stopwatch with Start, Pause, Reset and Lap
- Countdown timer with minutes and seconds
- Accurate elapsed-time math, no drift
- Silent finish — visible message only, no audio
- Free, no sign-up, runs in your browser
Frequently asked questions
How accurate is the stopwatch?
It measures with your device's own clock rather than counting screen updates, so it stays accurate to the millisecond even if the display refreshes less often.
Can I record lap times?
Yes. Press Lap while the stopwatch runs to save each lap; the list shows every lap in order until you reset.
Does the timer keep running if I switch tabs?
Yes — it is based on real timestamps, so when you come back it shows the correct remaining time, and it shows a clear “Time's up!” message on screen.
Is there a sound when the timer finishes?
The tool shows a clear “Time's up!” message on screen. It does not play surprise sounds, so it is safe to use anywhere.