20 Minute Countdown
A free 20 minute countdown timer that opens preset to 20 minutes. Press Start and the big display counts down to zero, then an alarm sounds. Use it for events, livestreams, games and breaks. No download, no signup.
What is this timer good for?
- A focused study or work sprint before a break
- A power nap (short enough to avoid grogginess)
- A home-workout circuit with timed sets
- Oven or air-fryer cooking steps
- A guided meditation or yoga sequence
How to use it
- The timer opens preset to 20 minutes.
- Adjust the hours, minutes or seconds for a different length.
- Press Start and the big display counts down.
- An alarm sounds at 00:00:00 — press Reset to run it again.
FAQ
Will it ring if I switch tabs?
Yes. The timer calibrates against your system clock, so it stays accurate even in a background tab. Just don't close the tab.
Do I need to download anything?
No. The timer runs entirely in your browser with no download, signup or plugin.
Can I change the duration?
Yes. Type any hours, minutes and seconds into the fields, or pick a related timer above.
Is it free?
Yes, it is completely free to use.