4 Second Interval Timer Information Center
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Background on 4 Second Interval Timer

40 intervals of 45 seconds produced with Seconds Pro One standard Tabata timer. 8 rounds of 20 seconds with 10 seconds of rest in between produced using Seconds
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4 Second Interval Timer
4 Second Interval Timer
4 min Interval Timer with no breaks - 50 rounds
Interval timer - 4 min rounds / No rests (including links to two workout routines)
Expert Insights
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Last Updated: June 3, 2026
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