Countdown Timer
Set any duration and count down to zero. Beeps when done.
05:00
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About this timer
Set the duration in hours, minutes, and seconds, or use one of the quick preset buttons. Click Start and the timer counts down to zero, then plays an audio alert. You can pause and resume without losing progress.
How to use it
- Click a preset button, or enter a custom duration using the hour/minute/second fields.
- Click Start to begin the countdown.
- Click Pause to hold the timer. Click Start to resume.
- Click Reset to go back to the set duration.
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Common uses
- Study sessions and timed reading
- Cooking and kitchen timing
- Presentations and timed speeches
- Games with time limits
- Limiting time spent on specific tasks
FAQ
- Does it keep counting when I switch tabs?
- Yes. The timer uses real wall-clock time and will beep at the correct moment even if the tab is in the background.
- Will the sound play if my browser is muted?
- No. The alert uses the Web Audio API and respects your system/browser volume settings.
- What is the maximum duration?
- Up to 23 hours, 59 minutes, and 59 seconds.