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minute·timer

Countdown · 20 minutes

20 minute timer

A twenty minute countdown for naps, study blocks and slow bakes.

20 minutes

20:00

Shortcuts: space start or pause · R reset · F fullscreen. The alarm rings even if you switch tabs.

In short

A 20 minute timer counts down from 20:00 to zero and sounds an alarm — 1200 seconds in total. This page opens with 20:00 already loaded, so pressing start is the only step, and the length can be changed to anything else without leaving the page. A 20 minute countdown is most often used for power naps, study blocks, and roasting vegetables.

Length
20 minutes
In seconds
1,200 seconds
Ends with
Three rising alarm tones, plus vibration on mobile
Also known as
1,200-second timer
Cost
Free, no account, no install

How to use the 20 minute timer

  1. Start the 20 minute countdown with the button or the space bar.
  2. Reset, or the R key, puts it back to the full 20 minutes at any point.
  3. Bookmark this page and the same length is waiting next time — no setting up twice.
  4. After your first visit the page works offline, so a dropped connection will not stop a running timer.

What people time for 20 minutes

Twenty minutes is the sweet spot for a nap and for a focused block that does not need a warm-up.

  • The classic power nap, short enough to wake up clear-headed
  • Twenty minute study or revision blocks
  • Roasting vegetables and baking traybakes
  • Full meditation sits once ten minutes feels short
  • Timed writing, sketching and practice sessions

Sleep researchers keep coming back to twenty minutes because it usually keeps you in the lighter stages of sleep, so you wake without the fog that follows a long daytime sleep. Set it, put the phone face down, and let the alarm do the work. See the sleep timer for a gentler wind-down version.

Change the length without leaving the page

Need something other than 20 minutes? Edit the fields and the timer takes it immediately. The pages below exist so the lengths people set most often are one bookmark rather than three taps away.

Questions about the 20 minute timer

Will the alarm wake me from a nap?

It sounds three rising tones and, on phones that support it, vibrates. Turn your volume up before you lie down, keep the tab open, and do not put the device on silent.

Can I pause and come back to it later?

Yes. The same button pauses and resumes, and the space bar does both. Pausing holds the exact remaining time until you start it again.

Are there ads over the timer?

No. No advertising is placed over or around the clock, and there are no tracking scripts on the page.

Is there a warning before the time runs out?

Yes — three short beeps in the final three seconds, and the draining bar and tick strip make the last stretch obvious at a glance.

Sources

  1. Rosekind, M. R. et al. (1995). Alertness management: strategic naps in operational settings. Journal of Sleep Research, 4(S2), 62–66.