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20 Minute Timer

Twenty minutes is a classic length for a nap, a walk around the block or one segment of a lesson. Start the timer and come back when it rings.

Timer

20:00
Ready
Set the timer
Presets

Keyboard: Space start or pause, R reset

Runs on your device. Nothing you enter is sent to a server.

What a 20 Minute timer is good for

  • A power nap: many sleep guides suggest keeping it to about 20 minutes.
  • The 20-20-20 rule for screen work: every 20 minutes, look at something 20 feet away for 20 seconds.
  • A brisk walk, a meditation or a short yoga session.

Press Start and the countdown runs for exactly 20 minutes. It shows in the tab title too, so you can work in another tab and still see the time left. When it reaches zero, a gentle alarm plays and the dial flashes until you stop it.

Other timer lengths

Want to time something without an end point? The stopwatch counts up with lap times. For a date rather than a duration, the countdown timer counts the days and hours to an event.

Frequently asked questions

How many seconds are in a 20 Minute timer?

1,200 seconds. The 20 Minute timer counts them down from 20:00 and plays an alarm at zero.

Will the 20 Minute timer ring if I switch tabs?

Yes. The timer works from the moment it should end, not from ticks, and the alarm is scheduled on the browser's audio clock, which keeps running in background tabs. Keep the sound on and the tab open.

Can I change the 20 Minute timer to a different length?

Yes. The hours, minutes and seconds fields and the presets work as usual. This page only starts at 20 minutes; every other length is one tap away, or open one of the timers linked below.