About this 15 minute timer
Quarter-hour timer ideal for power breaks, oven bake checks, classroom transitions, and short naps. Perfect for the "15-minute rule" to beat procrastination - commit to just 15 minutes of any task.
Press start and the timer shows exactly when your 15 minutes will be up. It rings at zero, goes full screen for classrooms and kitchens, and remembers where it was if you refresh the page.
What people use a 15 minute timer for
- The 15-minute rule for beating procrastination
- Stand-up meetings and short check-ins
- Power breaks and oven checks
- Silent reading time in class
15 minutes at a glance
| In seconds | 900 seconds |
|---|---|
| Halfway point | 7 minutes 30 seconds |
| Start now and it ends at | — |
How to use the 15 minute timer
- The timer is ready at 15:00. Tap Edit time to change it.
- Press Start Timer (or the space bar). The finish time appears under the digits.
- Press Full screen to fill the screen — handy for classrooms, meetings and kitchens.
- When it reaches zero an alarm plays until you press Stop Alarm.
Keyboard shortcuts
- Space start / pause
- R reset
- F full screen
- M mute
Frequently asked questions
How many seconds are in 15 minutes?
15 minutes is 900 seconds.
How do I set a 15 minute timer?
Press Start Timer — it is already set to 15:00. To change the length, tap Edit time, enter hours, minutes and seconds, then press Set. You can also add a minute at any point with +1 min.
Will the timer keep running if I refresh or close the tab?
Yes. The end time is saved in your browser, so reopening this page shows the correct time left. To hear the alarm, keep the tab open and your device's sound on.
Does the timer work on a phone?
Yes. It runs in any modern mobile browser with no app or sign-up, and it asks your phone to keep the screen awake while it runs.