15 second timer
A fifteen second timer with a sound at the end. Fifteen seconds is a short working interval and a short rest: long enough to hold something, short enough that you feel it.
00:15
RingBar
Presets
Take it with you in the app
This tool runs in your browser. Want it on your phone, with voice cues, background timing and a real alarm? Open the same tool in NanoTimer.
Open on your phoneOpens NanoTimer on your iPhone and starts right away.
Download on theApp StoreLink coming soon
How it works
- Tap Start and follow the ring.
- Common uses: the rest half of a 45/15 interval, a held stretch, or a clip you are timing.
- A tone marks the end so you do not have to watch the screen.
- For repeated rounds rather than one countdown, use the interval timer instead.
Frequently asked questions
- What is a fifteen second timer for?
- Two things mostly. It is the rest half of the common 45 on, 15 off circuit format, and it is a short hold: a stretch, a plank for someone starting out, or a breath you are pacing.
- Should I use a timer or an interval timer?
- This page counts down once. If you want fifteen seconds to repeat with a work period in between, an interval timer does that without you restarting it each round.
- Does the timer keep running if I switch tabs?
- In the browser this tab has to stay open. On your phone NanoTimer keeps running in the background, with a notification and a Live Activity on the lock screen.