20 Minute Timer

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Set a 20 minute timer

Need 20 minutes and a clear signal when they're over? This 20 minute timer runs from 20:00 to zero and then sounds an alarm. Press Start once; the page shows when the 20 minutes will end and keeps the remaining time in your browser tab title.

Three things people time in 20 minutes

A short nap. Twenty minutes is a popular power-nap length. If you need a few minutes to drift off first, the nap timer lets you add a falling-asleep buffer and shows your wake-up time.

Nightly reading. Many elementary teachers ask students to read for about 20 minutes a night. A visible countdown ends the "is it done yet?" questions.

A quiz or timed practice. Twenty minutes suits a short classroom quiz or a practice section. Press F for full screen and project it.

Pair it with the 20-20-20 rule

Eye-care professionals commonly suggest the 20-20-20 rule for screen work: every 20 minutes, look at something about 20 feet away for 20 seconds. Restart this timer after each eye break, or switch to the break timer, which includes the 20-20-20 idea among its break suggestions.

Step by step

  1. Press Start or Space.
  2. Choose a sound – Bell is gentle for a nap, Emergency is loud for a quiz.
  3. Press R to reset or Set Time to change the length.

FAQ

Will I hear the alarm if I nap with my phone locked? Only if the page stays open and the browser keeps running it. Keep the screen on, or use your phone's built-in alarm as a backup for anything important.

Does it remember 20 minutes next time? This page always opens at 20 minutes, so just bookmark it. Your sound choice is saved on this device, with no account needed.