Everyday tool
Interval Timer
Build interval workouts with preparation, work, rest, and optional cooldown phases. Choose the number of rounds, control whether rest follows the final work round, and see the current phase, round, phase time remaining, and total session time remaining. Start, pause, resume, reset, or skip phases. Editable example presets and full-screen mode are included. Configuration and active state are saved locally and restored after refresh.
Ready
00:00
Total remaining: 08:50
Interval configuration
Preparation
Work
Rest
Cooldown (optional)
Example presets
Planned total: 08:50
Sound alerts
Alerts play for 2.4 seconds. Alerts may not play if your device is locked, asleep, or the browser is suspended.
Configuration and active state are saved in this browser only. A locked or sleeping device may prevent sound alerts.
How to use this timer
- Set your duration or choose a practical preset.
- Press Start when you are ready. Pause and resume whenever you need.
- Use Reset to return to the configured starting point.
Related timers
EMOM Timer
Start a new interval every minute with configurable rounds, optional custom intervals, activity labels, and sound at boundaries.
Boxing Timer
Configurable boxing round timer with preparation, round and rest durations, warning before round end, and optional sounds.
Repeating Timer
Cycle through work and rest intervals with configurable duration, rest, cycle count, and phase alerts.