Countdown Timer
Set a duration and count down to zero. Useful for presentations, workouts, cooking and games — with a clear alert when time is up.
05:00
Set a duration and press Start.
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How to Use the Countdown Timer
- Enter the hours, minutes and seconds.
- Press Start to begin the countdown.
- Pause any time and resume when ready.
- When it reaches zero you will see and hear the alert.
Popular Countdown Uses
- 5-minute presentation timer
- Pomodoro 25-minute timer
- Cooking countdown
- Workout rest timer
- Exam time limit
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Frequently Asked Questions
How do I set a countdown?
Type the hours, minutes and seconds you want, then press Start. The display counts down to zero and shows an alert.
Can I pause and resume the countdown?
Yes. Pause freezes the remaining time; pressing Start again resumes from where you left off.
Will I hear an alert when time is up?
Yes — the timer plays an audible alert and shows a visual notification when the countdown reaches zero. Keep the tab audible for the sound.
Does it work when the tab is in the background?
The countdown keeps running, though some browsers throttle background tabs. For important timing, keep the tab in the foreground.