Skip to the timer
minute·timer

Countdown · 15 minutes

15 minute timer

Fifteen minutes, counted down cleanly, with an alarm you will actually hear.

15 minutes

15:00

Shortcuts: space start or pause · R reset · F fullscreen. The alarm rings even if you switch tabs.

In short

A 15 minute timer counts down from 15:00 to zero and sounds an alarm — 900 seconds in total. This page opens with 15:00 already loaded, so pressing start is the only step, and the length can be changed to anything else without leaving the page. A 15 minute countdown is most often used for short meetings, long breaks between Pomodoro cycles, and oven timing.

Length
15 minutes
In seconds
900 seconds
Ends with
Three rising alarm tones, plus vibration on mobile
Also known as
Quarter-hour timer
Cost
Free, no account, no install

How to use the 15 minute timer

  1. Start the 15 minute countdown with the button or the space bar.
  2. Reset, or the R key, puts it back to the full 15 minutes at any point.
  3. Bookmark this page and the same length is waiting next time — no setting up twice.
  4. After your first visit the page works offline, so a dropped connection will not stop a running timer.

What people time for 15 minutes

A quarter of an hour is the classic short meeting, the classic long break, and the classic homework block for younger students.

  • Fifteen minute meetings that used to be thirty
  • The long break between Pomodoro cycles
  • Oven timers for bakes, tray roasts and reheats
  • Power naps that stop short of deep sleep
  • Timed exam sections and reading comprehension tasks

Fifteen minutes is also the point where a timer changes behaviour rather than just measuring it. Give a meeting a visible quarter hour and the agenda tightens itself. Give a chore fifteen minutes and it stops expanding to fill the afternoon.

Change the length without leaving the page

Need something other than 15 minutes? Edit the fields and the timer takes it immediately. The pages below exist so the lengths people set most often are one bookmark rather than three taps away.

Questions about the 15 minute timer

How is this different from a stopwatch?

A stopwatch counts up from zero with no end point. This counts down to zero and rings, which is what you want when the finish matters more than the elapsed time.

Can I keep working in another window while it runs?

Yes, and the tab title shows the remaining time, so a glance at the tab bar tells you where you are without switching back. The alarm plays whether or not the tab is in front.

Is there a limit on how many timers I can run?

No. Open the page in as many tabs as you like — each one counts independently and shows its own remaining time in its tab title.

Does it vibrate on a phone?

On phones that support it, yes: a short pattern plays alongside the alarm tones. It works in most mobile browsers but not all, so do not rely on vibration alone for something critical.