15 Minute Timer

Sound / Message

Sound plays when the timer ends.

This is a ready-to-use 15 minutes countdown timer. Press Start and an alarm sounds after 15 minutes. You can change the time, the sound and the message at any time.

15 minutes in other units

Need to know exactly how long the 15 minutes timer runs? Here is the same duration expressed in other units of time:

  • 15 minutes = 900 seconds
  • 15 minutes = 0.25 hours

Ways to use a 15 minute timer

A quarter of an hour is the length of a classic stand-up meeting, a quick power nap and a decent speed-clean of a room. It is also the usual length of the long break after four Pomodoro sessions.

Because fifteen minutes feels manageable, it is a good block for tasks that you keep postponing: a phone call, a form, a small piece of admin.

  • A daily stand-up or a short catch-up call that must end on time.
  • A power nap of around 15 minutes, short enough to avoid grogginess.
  • A speed clean: set the timer and race it.
  • The long break after four Pomodoro sessions.

How to use the 15 minutes timer

  • Press Start. The countdown for 15 minutes begins right away.
  • Press Pause if you need to stop, then Resume to carry on from where you left off.
  • When time is up an alarm sounds and your message appears. Press Stop to silence it.
  • Want a different length? Change the hours, minutes or seconds before you press Start.

Nearby timers

Frequently asked questions

How many seconds are 15 minutes?

15 minutes equal 900 seconds, which is 15 minutes or 0.25 hours.

Is a 15 minute nap long enough?

Short naps of 10 to 20 minutes are commonly recommended because they help alertness without leaving you groggy. Set the alarm and keep the room dim and quiet.

Will the 15 minutes timer keep running if I switch tabs?

Yes. The countdown is based on your device clock, so it stays accurate when the tab is in the background. Keep the tab open and your device awake so the alarm can sound.

Can I pause the 15 minutes timer and resume it later?

Yes. Press Pause to stop the countdown and Resume to continue with the remaining time. Reset takes you back to the start.

Can I change the alarm sound?

Yes. Open the Sound / Message settings under the timer to pick a sound, preview it and add a custom message. Your choice is remembered in your browser.

Timers