12 Minute Timer
Twelve minutes is the length of the Cooper test, a fitness run devised by Dr Kenneth Cooper in 1968: go as far as you can in 12 minutes. Press Start and it rings at zero, even if you switch tabs.
Space start/pause · R reset · F full screen
Alarm & notification settings
Sound needs one tap on the page first (a browser rule). Keep this tab open: closing it stops every timer’s alarm. Why timers stay accurate in background tabs.
What people time with 12 minutes
- The Cooper 12-minute run test
- Many brown rice or quinoa cooking steps
- A mid-length meditation
- A timed exam question
12 minutes in other units
| Seconds | 720 |
|---|---|
| Minutes | 12 |
| Hours | 0.2 |
| Share link | countdownpro.app/?t=12m |
Questions
How do I set a 12 minutes timer?
Press Start on this page. The 12 minutes countdown begins at once and rings when it reaches zero. You can also press the space bar to start and pause.
How many seconds are in 12 minutes?
12 minutes is 720 seconds.
Will it still ring if I switch to another tab?
Yes, while the tab stays open. The alarm is scheduled for an exact end time when you press Start, so a background tab does not delay it. Turn on notifications to get a system alert too.
Can I run this alongside other timers?
This page runs one big timer. For several at once, open the main countdown timer board, which runs any number of labelled timers side by side.