15 Second Timer
What a 15 second timer is good for
People use this timer for a short stretch hold, a rapid-fire quiz answer and a sprint drill. Fifteen seconds is a common rest between sprint repeats: long enough to breathe, short enough to stay warm.
How it works
Under the digits you see the clock time when the timer ends. Need a little longer? Tap +1 min while it runs. Switch between numbers, a progress ring, a visual disc and a sand timer.
Space starts and pauses, R resets and F opens fullscreen. The screen stays on, and the timer follows the real clock, so it stays accurate when the tab is in the background.
Questions
How do I set a 15 second timer?
Press Start on this page: the timer is already set to 15 seconds. To change it, tap the digits or pick another preset.
Is there a 15 second timer with sound?
Yes. Pick one of several alarm sounds and a volume, and turn on repeat until stopped so you do not miss it.
Will it ring in a background tab?
Yes. The countdown follows the system clock and the alarm rings even if you switch tabs. Keep the tab open.
Can I repeat it for intervals?
For repeated work and rest, the interval timer runs the rounds for you with voice cues.