Create custom work/rest intervals for HIIT, Tabata, circuit training, and study sessions.
Interval Timer turns a chosen work/rest pattern into a sequence of countdown periods for exercise circuits, HIIT sessions, Tabata-style training, or focused study. Set how long each active and recovery phase should last and how many times the pattern should repeat, then follow the alternating phases instead of resetting a stopwatch. The easy mistake is to treat work time as total session time. Every scheduled rest period also adds elapsed time, and the presence or absence of a final rest period changes the finish time.
Choose the length of the work phase and the recovery phase, then set how many times the pattern should repeat. The timer keeps the phases separate and presents them in order. Editing either duration changes that phase wherever it occurs, which is useful when the same effort and recovery cadence must be repeated without manually resetting a stopwatch.
Session length comes from all scheduled phases, not from the work setting alone. Calculate work time by multiplying the work duration by the number of work periods, and calculate recovery time the same way using the number of rest periods. Add only the phases the timer will actually run; whether a final recovery is present changes the result by one rest duration.
Yes. Every rest phase that actually runs contributes to elapsed clock time, even though it is not counted as work. The total is the sum of all scheduled work and rest phases. If the configured sequence ends immediately after its last work phase, a hypothetical final rest should not be added.
Yes, provided the session can be expressed as alternating active and recovery durations. For a circuit, "work" can mean time at a station; for studying, it can mean focused time. No, the timer does not select exercises, measure effort, judge safe intensity, or decide how much recovery a particular person needs.
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