15 minute timer
Fifteen minutes is a quarter of an hour — the length of an NFL quarter and the longest halftime allowed in soccer.
Ready
Ends 15 minutes after you press Start.
Keyboard: Space start or pause, R reset, F full screen.
15 minutes in other units
- Seconds
- 900
- Share of an hour
- 25%
- a quarter of an hour
- On the timer
- 15:00
- Back to back
- 96 a day
- fit exactly into 24 hours
What a 15 minute timer is good for
- Coffee breaks. The classic short break at work.
- Football quarters. NFL and college football quarters are 15 minutes of game clock.
- Soccer halftime. The halftime interval in a soccer match may last up to 15 minutes.
- Daily chores. Fifteen minutes of decluttering or email a day keeps the backlog down.
Other timers
About this timer
The countdown runs against your device's clock from the moment you press Start, so it stays accurate in a background tab. The line under the digits shows the local time it will end. Pick one of ten alarm sounds, all generated in your browser (hear them on the countdown sounds page), and use full screen to read the time from across a room. Need a different length? Set a custom timer.
Related
Frequently asked questions
How do I set a timer for 15 minutes?
This page is already set to 15 minutes. Press Start, or the Space bar, and the countdown begins; when it reaches zero, the alarm sounds and the page shows Time's up. Pause stops the clock and Reset takes it back to 15 minutes.
How many seconds are in 15 minutes?
900 seconds, or a quarter of an hour.
How long is a quarter of an hour?
Fifteen minutes, or 900 seconds — a quarter of 60 minutes.
Will the alarm go off if I switch tabs?
In most desktop browsers, yes. The countdown is worked out from the real clock, and the alarm is scheduled with the browser's sound engine when you press Start, so it stays on time in a background tab. Phones can pause web pages when the screen locks, so keep the screen on — the timer asks the browser to do that where it can — and turn the volume up.