No downloads or signups
Works on any device
Built for any workout
20 Second Interval Timer
Train smarter with fast, repeating 20 second intervals to sharpen your work periods, manage your rest, and keep your sessions consistent.
How to Use Our 20 Second Repeating Timer for Workouts
Our 20 second interval workout timer is perfect for structuring short bursts of effort followed by brief rest periods. Whether you are running speed drills, working through Tabata-style circuits, or managing pacing during strength sets, a 20 sec repeating timer helps keep you focused without losing momentum.
This timer is ideal for sprint intervals, combat sports conditioning, strength training rounds, or even quick cardio bursts where short, repeated work periods matter. With automatic 20 second repeats and clear audio beeps, you can stay locked into your workout without constantly resetting or checking the clock.
Our free online 20 second timer works across any device, with fullscreen support for better visibility during training. No downloads, no logins, no setup delays, just open it, set your timing, and get straight into your workout.