20 Minute Timer
A 20 minute timer that is ready to go. Press Start, or the space bar, and it counts down 20 minutes and then sounds the alarm.
20 minutes
Spacestart / pauseRresetFfull screen+ −add or remove a minute0–9type a time
Good for 20 minutes
- A short “power nap” is usually kept to about 20 minutes so that you wake before deep sleep.
- The 20-20-20 rule for screen work: every 20 minutes, look at something 20 feet away for 20 seconds.
- Twenty minutes is one third of an hour.
Other timers
Questions people ask
Will the 20 minutes timer still go off if I switch tabs?
Yes. The end time is fixed when you press Start, so the countdown stays correct in a background tab and the alarm sounds on time as long as the tab stays open. If you turn on “Notify me”, you also get a notification.
What happens if I close the page or my computer sleeps?
The end time is saved on this device. Reopen the page and the timer shows the correct time left, or tells you how long ago it finished. A closed tab or a sleeping device cannot play the alarm.
Can I change it from 20 minutes?
Yes. Use the + and − steppers or type a new time, press + or − on a keyboard to add or remove a minute, or open the main timer to save your own presets.