HIIT timer — 40/20
HIIT timer set to 40 seconds work and 20 seconds rest over eight intervals. Runs in your browser, free, with no sign-up and nothing to install.
40 s work, 20 s rest, eight intervals.
HIIT 40/20
8 × 0:40 work, 0:20 rest.
HIIT 40/20 in detail.
HIIT timer set to 40 seconds work and 20 seconds rest over eight intervals. Runs in your browser, free, with no sign-up and nothing to install.
Forty seconds of work, twenty seconds of rest, eight times through: two parts work to one part rest, written out as a fixed sequence rather than something you keep in your head.
Every number on this page is editable. Set work to 30 and rest to 30 and you have a different session — the address bar updates to match, so you can send that exact session to someone else.
The pattern
- Work
- 0:40
- Rest
- 0:20
- Intervals
- 8
- Get ready
- 0:10
- Total
- 7:50
How a run goes
Press start. A ten-second countdown runs before the first work interval.
Work for 40 seconds. The timer announces the change and counts the interval down.
Rest for 20 seconds. A rest follows every work interval except the last one.
Eight intervals in all. Eight work blocks, seven rests between them.
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.