Tabata timer 20/10 x 8
20 sec work, 10 sec rest, 8 rounds. 4 min total.
What this one is for
This is the fixed 20/10 clock: eight twenty-second work periods and eight ten-second rests. Work totals 2:40, rest totals 1:20, and the session ends at 4:00.
The timing is associated with Tabata training, but a timer alone does not reproduce the original research intervention. Choose the activity and effort from an appropriate plan. Prepare before pressing Start; no warm-up is built into the block.
How it runs
20 sec work, 10 sec rest, 8 rounds. 4 min total. Press Start, or hit Space. The phase word and icon above the progress bar tell you where you are.
Check the Sound chip and device volume before starting. Work and rest have different tones. The tab title shows the time left. Start begins the first phase immediately; prepare your space first.
Keep the page visible for cues. The timer requests an awake screen, but the browser can refuse it or delay background sound. For offline use, load this exact page online and test a reload without a connection before relying on it.
This page uses fixed 20/10 timing for eight rounds. Choose a variant to edit the durations.
Common questions
Can I change the classic timing here?
No. This page uses the fixed Tabata mode: 20 seconds work, 10 seconds rest and eight rounds. Choose an interval variant to edit the durations.
Does four minutes include the final rest?
Yes. The last work period ends at 3:50 and the final rest brings the total to 4:00.
Does this reproduce the original study?
It reproduces the familiar timing pattern, not the full intervention. The original research also specified equipment, intensity and a repeated training programme.