4x4 interval timer
4x4 interval timer: four minutes of work, three minutes of rest, four times through. Runs in your browser, free, with no sign-up and no install.
4 min work, 3 min rest, four times.
4×4
4 rounds of 1 × 4:00 work, 0:00 rest.
4×4 in detail.
4x4 interval timer: four minutes of work, three minutes of rest, four times through. Runs in your browser, free, with no sign-up and no install.
Four blocks of four minutes, each followed by three minutes of rest. One long work block per round rather than several short ones, so this timer counts rounds where the others count intervals.
A little over twenty-five minutes end to end, countdown included. The timer calls every change, which is the part that matters over four minutes at a stretch: there is nothing to look at for most of it.
The pattern
- Work
- 4:00
- Intervals
- 1
- Rounds
- 4
- Round rest
- 3:00
- Get ready
- 0:10
- Total
- 25:10
How a run goes
Press start. A ten-second countdown runs before the first block.
Four minutes of work. One interval per round, announced at its start and its end.
Three minutes of rest. The round rest separates one block from the next.
Four rounds in all. The fourth block ends the session; there is no rest after it.
How it works.
Pick a template
Or pick a format and set times, rounds or stations yourself.
Start
Beeps and a spoken “Go” before every work block tell you what's next. The colour shows what's on: green for work, blue for rest.
Come back
Your timers stay saved in this browser. Share them with the link or open them again later.
All templates at a glance.
All times include ten seconds to get ready.
Good to know.
The screen stays on.
While the timer runs, your screen won't turn off. If your browser can't do that, the timer tells you.
Landscape for distance.
Turn your phone and the timer shows only the time and what's on, big enough for the other side of the room.
Every setting is in the link.
Copy the address, send it, done. No account on either side.
Counted against the clock.
Put the phone down or switch tabs and the time is still right when you come back. The browser does pause the beeps in between, though.
More than a timer.
yabso is a training log for strength and hybrid athletes: routines, set logging, rest timer, progress. Join the waitlist and we'll email you when it's your turn.