Features
- Flexible time settings.
- 24-hour format: Supports countdowns up to 24 hours.
- Combined H:M:S picker: Narrow scroll columns for hours, minutes, and seconds.
- Confirm to start: Footer Clear zeros the draft; OK begins the countdown.
Countdown Timer — Tutorial
Local countdown timer with 24-hour format custom hours/minutes/seconds…
Use Cases
- Focus work: Pomodoro Technique time management.
FAQ
What limitations should I know?
Time limit: Single countdown supports up to 24 hours (86,400 seconds).
When might it fail?
Browser compatibility: Fullscreen needs Fullscreen API; Picture-in-Picture needs Chromium video PiP (falls back to an in-page float).
What else should I watch for?
Page refresh: Refreshing the page resets the countdown — save important settings.