20 Minute Timer
Press Start for a 20 minute countdown with an alarm at the end. It is already set; change the time any time you like.
Keys: Space starts or pauses, R resets, F toggles fullscreen.
How to use it
- Pick a time with the hours, minutes and seconds boxes, or tap a quick button.
- Press Start. Press it again to pause.
- When the time is up the page flashes and an alarm sounds. Press Stop alarm to silence it.
- Use Fullscreen to show the countdown on a projector, a TV or a second screen.
What people use it for
- A power nap, if you fall asleep fast
- A twenty minute study block with a short break after
- A HIIT workout or a run-walk interval
- Baking a tray of cookies that need a short bake
- A focused reading session
Twenty minutes is a common study and exercise block. Follow it with a break of a few minutes, then start again, which is the idea behind interval work.
Questions
How do I set a 20 minute timer?
It is already set. Press Start and the countdown begins from 20:00
Can I use the 20 minute timer fullscreen?
Yes. Press Fullscreen or the F key to fill the screen with large numbers, which is handy for a classroom or a group.
Does the timer keep working in another tab?
Yes. It measures real clock time, so it stays correct while you use another tab or app. The time left also shows in the tab title. Your browser may mute sound in a background tab on some phones, so keep the screen on for the alarm.
Is it free?
Yes. No sign-up, no install and no limit. Everything runs in your browser and nothing is sent or stored.
Does it work on a phone?
Yes. It works in any modern phone browser. While a countdown is running we ask the screen to stay awake where your browser allows it.