21 Minute Timer
A free online timer set for 21 minutes. Press start to begin the countdown.
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About the 21 Minute Timer
This 21 minute timer is a simple, full-screen countdown for 21 minutes. It's handy for cooking, workouts, study sessions, presentations, games, and breaks. Press Start to run it, Pause to hold, and Reset to start over — or tap the time to set a custom duration.
Prefer to count down to a specific clock time instead of a duration? Try how long until a set time, or set an alarm.
Frequently Asked Questions
- How do I set a 21 minute timer?
- Press Start on the timer above and it counts down 21 minutes. You can pause, reset, or edit the time, and an alarm sounds when it reaches zero.
- Does the 21 minute timer play a sound?
- Yes. When the countdown finishes, an alarm sound plays. You can choose between a chime, beep, or bell.
- Will the timer keep running in the background?
- The timer is accurate even if the tab is in the background because it counts down from a fixed end time rather than ticking one second at a time. Keep the tab open to hear the alarm.