Countdown Timer
Set a countdown with hours, minutes, and seconds.
1 min
3 min
5 min
10 min
15 min
30 min
1 hour
00:05:00
How to Use This Tool
- Set the duration or start moment you want the Countdown Timer to track using the controls above.
- Press start and the Countdown Timer will run accurately even if you switch to another tab.
- Pause, reset, or restart with one click whenever you need to adjust the session.
Common Use Cases
- Pomodoro sessions: Knowledge workers set 25-minute focus blocks followed by 5-minute breaks to combat distraction and track deep work.
- Cooking and baking: Set parallel timers for multiple dishes (12-min pasta, 45-min roast) without juggling kitchen timers.
- Meeting time-boxing: Scrum masters display a visible countdown during standups or retrospective exercises to keep discussion bounded.
Frequently Asked Questions
How do I set a 25-minute Pomodoro timer?
Enter 25 in the minutes field and click Start. The display counts down to 00:00 and triggers an alarm. For a full Pomodoro cycle, run four 25-minute focus sessions separated by 5-minute breaks, then take a longer 15-30 minute rest.
Does the timer keep running if I close the tab?
No. Closing the tab terminates the JavaScript timer. Minimizing the window or switching tabs is fine because the countdown runs on Date.now() rather than setInterval ticks, so it stays accurate even when the browser throttles background tabs.
Can I get a sound alert when time's up?
Yes. The timer plays a built-in chime when the count reaches zero. Make sure your browser tab isn't muted (click the speaker icon next to the tab title) and that your system volume is up. Mobile Safari requires a user interaction before audio plays.