20 Minute Timer
Free online 20 minutes timer with alarm sounds, repeat mode, and browser notifications. No sign-up, no ads.
A 20 minutes timer is a simple countdown for any task. Press start and watch the 20 minutes run down — no app, no sign-up, no ads.
Common uses
✓Quick task boxing
✓Micro-break reminder
✓Lightweight alarm
✓Countdown check
FAQs
How do I start the 20 minutes timer?
The 20 minutes duration is loaded automatically. Press the big start button or hit the spacebar to begin.
Can I hear an alarm when it finishes?
Yes. Open settings (the gear icon) to pick a sound, adjust volume, and set repeat behavior for the alarm.
What can you actually do in one minute?
More than you think: brush your teeth, do 15 pushups, take 6 deep breaths, or skim a page. A one-minute timer is about focus, not duration.
How accurate is a one-minute countdown?
The timer counts milliseconds. For a one-minute count, it’s within a fraction of a second — accurate enough for any micro-task.