Interval timer

How to use the interval timer

Set the work and rest times and the number of rounds, or tap a preset such as 30/30 or 40/20. Press Start: after a short countdown the screen turns green for work and amber for rest, with three short beeps before each change and a long one on it.

Add sets to repeat the whole block with a longer rest in between, and type one movement per line to see what is coming in each work period. The screen stays awake while the timer runs. Copy link shares the exact setup, and Save keeps it on this device.

Common questions

What do 30/30, 40/20 and 45/15 mean?

Seconds of work, then seconds of rest. 30/30 is even work and rest, 40/20 and 45/15 give less rest for the same minute, and 20/10 is the Tabata pattern.

Does it keep time if the screen locks or the tab is in the background?

Yes. The time comes from the clock rather than from counting, so it is right when you come back. Phones silence a web page once the screen locks, so the timer keeps the screen awake while it runs.

Is the timer free?

Yes. There are no ads, no account and nothing to install. It is made by one person, alongside the WOD Generator app.