RiLiFi
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20 minute timer.

This free 20 minute timer counts down from 20:00. Press Start or Space, and it chimes when time is up.

20:00

Ready

Custom timeUp to 3 hours.

Keys: Space start or pause · R reset · F full screen · Esc exit

Run a timed live quiz with your group – free for 100 players.

Runs in your browser. Nothing to install, no account.

What twenty minutes are good for

The ring turns coral for the last 2 minutes. If your laptop sleeps, the timer shows the right time again when it wakes, because it counts to a fixed end time.

  • Focus block. Work on one task for twenty minutes with notifications off, then take a short break. Repeat.
  • Short test or exam section. Time one section of a test, with the clock on the board so nobody has to ask how long is left.
  • Breakout rooms. In a video call, share the timer tab before you open breakout rooms, then share it again when people return.
  • Workshop exercise. Twenty minutes fits a hands-on task with a few minutes to tidy up the result.

FAQ

20 minute timer questions

Does the timer still work if my laptop goes to sleep?
While it runs, the timer asks the browser to keep the screen awake, so most laptops stay on. If the device sleeps anyway, the timer shows the right time left when it wakes.
Can I use the timer in a video call?
Yes. Share your screen or just the timer tab. Full screen makes the digits large enough to read in a small video window.