Countdown Timer — Free Online Tool
Set a target date and time and watch a live countdown updating every second.
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About Countdown Timer
The Countdown Timer lets you set any future date and time and watch a live countdown tick down in days, hours, minutes, and seconds. It is ideal for tracking product launches, exams, holidays, birthdays, deadlines, webinars, or any moment you are looking forward to.
The timer updates every second right in your browser and needs no account or installation. You can start, pause, and reset the countdown freely, and when the target moment arrives the tool clearly announces that time is up.
How to Use Countdown Timer
- Pick your target date and time using the date-time picker.
- Click Start to begin the live countdown.
- Use Stop to pause the countdown at any moment.
- Click Reset to clear the timer and return to the default target.
Key Features
Live countdown updating every second
Counts down in days, hours, minutes, and seconds
Start, stop, and reset controls for full flexibility
Clear time-is-up alert when the target is reached
Runs entirely in your browser with no signup
Works on desktop, tablet, and mobile browsers
Frequently Asked Questions
Does the countdown keep running if I switch tabs?
The timer runs while the page is open in your browser. If you switch tabs and return, the countdown recalculates from the real current time, so it stays accurate to your target moment.
What happens when the countdown reaches zero?
When the target date and time arrives, all values drop to zero and the tool displays a clear 'Time is up!' message, then stops counting.
Can I pause and resume the countdown?
Yes. Use the Stop button to pause and Start to resume. Because the countdown is based on the real target time, it always reflects the true remaining duration.
Is my target date sent anywhere?
No. The countdown is calculated entirely in your browser. Your chosen date and time never leave your device.