Online Timer & Stopwatch — Alarm and Laps
Countdown alarm and lap stopwatch
Time left03:00
Time's up!
Quick set
Elapsed00:00.00
Laps
| Lap | Lap time | Total |
|---|
How to use
- Timer: tap a preset or enter hours, minutes and seconds, then Start. A chime and vibration tell you when time is up.
- Add a minute anytime with +1 min.
- Stopwatch: press Start and tap Lap to record splits. Fastest and slowest laps are marked.
- Use "Copy link for this time" to open the timer with the same time later.
FAQ
Can I switch tabs or refresh?
Yes. Time is based on the end time, so it never drifts, and it continues after a refresh. After refreshing, tap the page once so the chime can play (a browser rule).
No sound when the screen is off?
Supported browsers keep the screen on while the timer runs. Locking your phone or closing the browser can delay or mute the alarm.
How accurate is the stopwatch?
It shows hundredths of a second and is based on the device clock, so it does not drift.
Can I share a timer link?
Pick a time and tap "Copy link for this time". The link ends with ?t= and the seconds.