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ClockHub
Interval Timer
Build a simple work/rest interval timer for HIIT, circuits, study blocks, and repeat training.
What this interval timer is for
Use it for HIIT workouts, circuit training, mobility blocks, study intervals, and any routine that alternates work and rest.
Interval timer setup
- Set the work seconds for each active interval.
- Set the rest seconds between work intervals.
- Choose how many rounds to complete.
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Browser timer note
This timer runs in your browser. Keep this tab open and your device awake for the best result. Do not rely on it for safety-critical alarms.