Eight Tabata intervals of 20 seconds on and 10 seconds off
Start the timer when the activity begins, then use the visual ring to check progress without reading a clock.
Free online countdown
Four minutes is a compact block for structured exercise, transitions, and fast reviews.
Keyboard: Space starts or pauses, R resets, F enters fullscreen.
Practical ideas
Start the timer when the activity begins, then use the visual ring to check progress without reading a clock.
Start the timer when the activity begins, then use the visual ring to check progress without reading a clock.
Start the timer when the activity begins, then use the visual ring to check progress without reading a clock.
For interval training, use this page as the overall block timer and a separate cue for each round.
Choose another duration
Timer help
Press Start to begin the preset 4 minutes countdown. You can pause, reset, change the duration, enter fullscreen, or share the page.
The timer calculates from a fixed end time instead of trusting delayed browser intervals. Keep the tab open and your device awake if you need to hear the alarm.
4 minutes equal 240 seconds.