15 minute timer
Fifteen minutes, counting down.
15:00
Quick times
Nothing leaves your device
This tool runs entirely in your browser. What you type, play or record here stays on your device: nothing is uploaded or saved on a server.
Example
Example: a 15-minute quiz on the classroom dial, and other times typed in
The page opens at 15:00. For a quiz in class choose Classroom timer (red dial), press Full screen for the projector and keep the Bell.
- The red sector starts at 90°, a quarter of the dial, which stands for an hour.
- After 5 minutes it covers 60° and the time reads 10:00; with one minute left, 6°.
- Press +1 min while it runs and the end moves a minute later. At 00:00 the bell rings for about five seconds; a click or a key stops it sooner.
| You type | Timer set to |
|---|---|
| 15 | 15:00 |
| 14:30 | 14:30 |
| 14m 30s | 14:30 |
| 12.5 | 12:30 |
| 900s | 15:00 |
| 0.25h | 15:00 |
| 1:15:00 | 1:15:00 |
A quiz that needs a little longer gets one press of +1 min, and any other length is typed into the time box the same way.
How it works
- Press Start (or the space bar): the timer counts down from 15:00.
- Add a minute with +1 min, or pause and resume as you need.
- When it reaches zero it rings for about five seconds (a click or a key stops it sooner).
Frequently asked questions
- What can I time with a 15-minute timer?
- A focused work sprint, homework blocks, a meditation or a coffee break.
- Does it keep time in another tab?
- Yes. The time is worked out from the clock, not by counting ticks, so it stays right in a background tab or after the laptop sleeps, and the sound is scheduled ahead so it rings on time.
- Can I show it on a projector?
- Press Full screen (or F): the digits fill the screen, big enough for a classroom or a meeting room. Press Esc to leave.
- Can I change the time?
- Yes — type another time in the box (1:30, 20, 90s) or tap one of the quick times.
- How do I set 14 minutes 30 seconds?
- Type 14:30 (or 14m 30s) in the time box and press Start. A plain number is minutes: 12.5 is 12 minutes 30 seconds, and 0.25h is 15 minutes.
- Which display should I choose?
- Digits for big numbers on a screen, Hourglass for younger children, or Classroom timer: a red dial whose full turn is an hour, so 15 minutes starts as a quarter, 90°, and shrinks as the time runs.
- Is anything uploaded?
- No. The timer runs in your browser; nothing is sent anywhere.