How it works
The timer uses a one-second interval and recalculates remaining seconds locally.
A visual message appears when the countdown ends.
Run a simple countdown.
Set hours, minutes, and seconds, then start, pause, or reset a local browser timer.
00:05:00
Ready.
Practical examples
- Run a 5, 10, or 25 minute focus timer.
- Set a custom countdown for a break, meeting, or cooking step.
- Pause and resume without sending state anywhere.
How to read the result
- The display updates once per second.
- The result area shows the projected end time for the selected duration.
- The result message changes when time is up.
Limits and privacy notes
- Browser throttling can affect background tabs.
- No server reminder is created.
- Timer state is local to the current page.
Preset timing
- 5 minutes fits quick breaks.
- 10 minutes fits short reviews.
- 25 minutes fits focus blocks.
Know when it finishes
- The output shows the projected end time.
- Changing duration refreshes the estimate.
- Background tabs can throttle timers.
Local tab only
- The timer does not create a server reminder.
- Reloading the page resets state.
- Keep the tab visible for best reliability.