Interval Timer
Online interval timer for custom rounds
Actions
Add actions with duration (required) and optional name. Assign a color to each.
sec
Saved routines
No saved routines yet.
Interval Timer Guide
Build your own round flow with action and rest steps. For simple single-duration countdowns, use Countdown Timer.
1. How can I set work and rest rounds with this interval timer?
- Add your actions with duration in seconds.
- Turn on rest between actions if you need recovery time.
- Set repeat count, or leave it open for continuous rounds.
- Press Start and the routine runs in sequence.
2. How does this HIIT-style timer chain rounds in the browser?
The interval timer builds a phase list from your actions and optional rest steps.
Each phase counts down in order, then moves to the next.
When repeat is enabled, the list starts again after one full cycle.
Phase changes trigger sound and optional browser notifications.
3. What is interval training, and how does this timer support it?
This browser interval timer is useful for HIIT, study rounds, and repeat task routines.
You control the sequence instead of forcing a fixed template.
4. Why use a browser interval timer for workouts or focus blocks?
- Custom action list.
- Optional rest phases.
- Repeat controls.
- Color-based phase view.
5. When do athletes and coaches use repeating interval timers?
- Run a 40s work / 20s rest circuit at home.
- Alternate study subjects with fixed break slots.
- Time multi-step drills for coaching sessions.
- Keep rehearsals paced section by section.