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Online timer

Set a time, press Start. It keeps counting accurately even in a background tab.

05:00

Tips

Preset timers

Why this one?

Related tools

FAQ

Will the timer work if I switch tabs?

Yes. It is based on the clock, not on counting ticks, so it stays accurate in the background and rings on time.

Why didn’t I hear the alarm?

Check your volume and that the tab isn’t muted. On iPhone, the ringer switch must not be on silent.

Can I use it in a classroom?

Yes — use Full screen and the big digits are readable from the back of the room.