Timer+ 30 seconds work · 30 seconds rest
Free 30/30 Interval Timer
Equal work and recovery periods make 30/30 intervals approachable for conditioning, strength circuits, and technique-focused sessions. This preset starts with ten rounds.
Use the generous recovery to reset your position and prepare for the next named exercise. Increase or decrease the rounds to fit your session.
Workout builder
Build your intervals
7:40 total
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Add exercise names or start with generic work intervals.
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Take your named workouts with you
Timer+ adds voice announcements for exercise names, workout history, live time adjustments, widgets, and Apple Watch support. It is also more reliable when your phone is locked or the browser is in the background.
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Online HIIT timer FAQ
What is the 30/30 Interval Timer?
Equal work and recovery periods make 30/30 intervals approachable for conditioning, strength circuits, and technique-focused sessions. This preset starts with ten rounds. Use the generous recovery to reset your position and prepare for the next named exercise. Increase or decrease the rounds to fit your session.
Can I name each exercise in this HIIT timer?
Yes. Every work segment has an optional exercise field. Enter names such as Pushups, Sit-ups, or Jump Squats and the active exercise will appear during the workout.
Will the timer keep running when my phone is locked?
Browser behavior varies when a screen is locked or the page is put in the background. Timer+ is the better choice for reliable workouts with voice announcements, history, live adjustments, and Apple Watch support.