90 Minute Timer

This free 90 minute timer is ready to go — the countdown is already set to 1 hour 30 minutes. Just press Start and watch it tick down. When it reaches zero a built-in alarm sound plays. No download, no signup; works on desktop and mobile.

What is this timer good for?

A deep-work or Pomodoro-style focus block
A revision or reading session before a rest
Marinating, proofing dough or slow-roasting
A full workout or class with warm-up and cooldown
A longer nap or rest period

How to use it

The timer opens preset to 1 hour 30 minutes.
Adjust the hours, minutes or seconds for a different length.
Press Start and the big display counts down.
An alarm sounds at 00:00:00 — press Reset to run it again.

FAQ

Will it ring if I switch tabs?

Yes. The timer calibrates against your system clock, so it stays accurate even in a background tab. Just don't close the tab.

Do I need to download anything?

No. The timer runs entirely in your browser with no download, signup or plugin.

Can I change the duration?

Yes. Type any hours, minutes and seconds into the fields, or pick a related timer above.

Is it free?

Yes, it is completely free to use.