These utilities are provided by Util Monster (util.monster) - util.monster
※ Work/Rest Repeat Timer (2025)
What is Interval Timer?
A timer that alternates between work and rest periods. Perfect for HIIT (High-Intensity Interval Training), Tabata, stretching, and various workouts. Set your work and rest times, and the timer will automatically repeat with sound alerts for phase transitions.
🔥 General Interval
30s work / 10s rest × 8 rounds
⚡ Tabata
20s work / 10s rest × 8 rounds
💪 High-Intensity
40s work / 20s rest × 6 rounds
🧘 Stretching
30s stretch / 30s rest × 10 rounds
Work Time
sec
Rest Time
sec
Rounds
times
Ready
00:30
0 / 8 rounds
※ Suitable for HIIT, Tabata, stretching, etc.
※ Sound alert before each work phase
※ Keep browser tab open