Set a countdown timer by entering hours, minutes, and seconds — then hit Start and watch the time tick down with a visual display. When the timer reaches zero, an alarm sound plays automatically. Perfect for cooking, studying, workouts, or any timed task.
Total Duration
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Timer Display
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Total in Minutes
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Total in Hours
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Enter the number of hours, minutes, and seconds you want to count down from, then click Start. The timer will begin counting down immediately and alert you when it reaches zero.
Yes. Click the Pause button at any time to freeze the countdown. Click Resume (or Start again) to continue from where you left off. Clicking Reset returns the timer to your original set duration.
By default the timer stops and plays an alarm sound. You can change this behavior in the settings — choose to repeat the alarm continuously or automatically restart the countdown for looping sessions like interval training.
Yes. Select 'Silent' from the Alarm Sound dropdown. The timer will still display and count down visually, but no audio will play when it finishes.
The Pomodoro technique uses 25-minute focused work sessions followed by 5-minute breaks. Set the Minutes field to 25, label it 'Pomodoro Session', and start the timer. After it ends, reset it to 5 minutes for your break.
Yes. The countdown continues running in the background while you switch tabs or minimize the browser. The alarm will play when the timer ends, though some browsers may throttle background tabs slightly.
You can set up to 99 hours, 59 minutes, and 59 seconds — giving a maximum countdown of just under 100 hours, suitable for extended events or long-term reminders.
This tool runs a single countdown at a time. To run multiple simultaneous timers, open the page in multiple browser tabs, each configured with a different duration and label.