20 Minute Timer
The 20 minute timer is a free, full screen countdown with a large display and an alarm at the end. It runs entirely in your browser with no sign up, which makes it well suited to a laptop, a phone, or a screen at the front of a class or gym.

How to use and set the timer
- Open the page. The timer is already set to 20 minutes, so there is nothing to set up before you begin.
- To use a different length, type your own hours, minutes, and seconds into the display, or choose one of the presets.
- Select Start, or press the spacebar, to begin the countdown. Pause and Reset control the run at any time.
- Switch to full screen for a large, high contrast display, and turn sound on so an alarm plays when the timer reaches zero.
Common use cases
- A power nap that refreshes without leaving you groggy
- An interval or circuit workout
- Roasting vegetables
- A focused work sprint
Frequently asked questions
How do I set a 20 minute timer?
This page is already set to 20 minutes. Select Start, or press the spacebar, and it counts down to zero and then plays an alarm. To time a different length, enter your own hours, minutes, and seconds first.
Does it work full screen?
Yes. Switch to full screen for a large, high contrast countdown that reads clearly across a classroom, gym, stage, or meeting room.
Is it free, and do I need an account?
It is completely free, with no sign up and no download, and it works on any phone, tablet, or computer.
Will it make a sound when the time is up?
Yes. An alarm plays when the countdown reaches zero, so you do not have to watch the screen.
