About 1 Hour Timer
Press start; an alarm sounds when the 1 hour are up.
The timers run on your computer's clock, so they stay accurate even when the tab is in the background and play a sound when time is up. Sounds are generated in the browser; nothing is uploaded or stored.
How to use the 1 Hour Timer
- Enter a timeOr pick one of the presets.
- StartThe countdown begins and the screen stays awake.
- Hear the alertA sound plays when time is up or the alarm time arrives.
Frequently asked questions
Is the 1 Hour Timer free?
Yes, completely free with no sign-up.
Does it work if I close the tab?
No. Keep the page open for the timer and alarm; it can be in the background.
Does it work on phones?
Yes. In supported browsers the screen stays on while a timer runs.