15 Minute Timer

What Is a 15-Minute Timer Used For?

A 15 minute timer is a very common short focus length. It is a quarter of an hour, so it fits neatly into a schedule, and it is the classic long break after four Pomodoro rounds. Many people with ADHD use 15/5 cycles because 25 minutes feels too long to start. Press Start, do one thing until the alarm rings, then decide whether to go again.

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ADHD focus sprint

15 minutes of focus and 5 minutes of rest (15/5) is a common starting point when 25 minutes feels like too much.

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Pomodoro long break

After four 25-minute Pomodoros, take a 15–30 minute long break. 15 minutes is the short end.

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Power nap

Short naps of 10–20 minutes can boost alertness without the grogginess of a long nap.

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Chore blitz

Tidy one room, clear your inbox or prep dinner. Fifteen minutes is surprisingly productive.

How to Use This Timer

Press the Start button (the countdown also shows in your browser tab).
Pick an alarm sound on the side panel. Click a sound to preview it.
Keep the tab open. The alarm plays when the timer reaches 00:00, even in a background tab.
Press Reset to run it again, or open the full list of timers for another length.

💡 Try the 15/5 rhythm

Set 15 minutes of focus, then a 5 minute break, and repeat three or four times. It's a gentler version of the Pomodoro Technique that many students and people with ADHD find easier to start. When 15 minutes starts to feel easy, move up to the 25 minute timer.

Frequently Asked Questions

How many seconds are in 15 minutes?

15 minutes is 900 seconds.

Is 15 minutes a good focus session?

Yes. 15 minutes is long enough to finish a small task and short enough to start without resistance, which is why it's popular for ADHD-friendly 15/5 cycles.

What is a 15 minute break in Pomodoro?

In the Pomodoro Technique you take a longer 15–30 minute break after every four 25-minute sessions.

Does the alarm work if I switch tabs?

Yes. The timer is based on the clock, not the screen, and the alarm plays in a background tab. Keep the tab open and your device awake.