Online timer
A clean countdown timer that keeps exact time even in a background tab. Pick a preset or type any time up to 99 hours, choose an alarm sound and start.
Keyboard: Space = start/pause · R = reset · F = full screen
Great for
- Cooking, baking and tea
- Homework, exams and quiet reading
- Workouts, meetings and presentations
How to use it
Pick a time with the quick buttons or type hours, minutes and seconds. Press Start (or the Space key). The alarm rings when the time is up – press Stop to silence it. Use full screen to show the timer on a projector or TV.
Questions & answers
Will the alarm ring if I switch tabs?
Yes. The timer uses your device clock, so it stays exact and the alarm rings even if the tab is in the background. Keep the tab open and the sound on.
Can I keep the screen from turning off?
Yes. While the timer runs, it asks your browser to keep the screen awake (supported in most modern browsers).
Can I share a timer with a set time?
Yes – add ?t=7m30s to the address, for example /timer?t=10m. The timer opens with that time ready to start.