Countdown Timer
Set a target date and time and watch a live countdown tick down to it in days, hours, minutes, and seconds.
Recommended Settings
Pro Tips
- •The countdown updates live every second while this page is open - no need to refresh
- •If the target time has already passed, the display switches to showing how much time has elapsed since then instead
- •Add a label to keep track of what you're counting down to, especially useful if you have this open alongside other tabs
- •The countdown is based on your device's local clock and timezone
Most Popular
Most users set a countdown to an upcoming event, deadline, or launch date
When to Use This Tool
Show a live countdown to an upcoming event, wedding, or celebration.
Build anticipation for a product or feature launch with a live countdown.
Keep a visible countdown to an important deadline while you work.
Count down the days, hours, and minutes until a holiday or vacation.
How It Works
Calculate the difference between your target date/time and the current moment
Break that difference down into days, hours, minutes, and seconds
Refresh the display every second for a live-updating countdown
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Client-side interval-based countdown calculation for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
Does the countdown keep running if I switch tabs?
It continues running while the page stays open in your browser, though most browsers throttle timers in background tabs slightly, which can cause a small, temporary lag until you return to the tab.
What happens after the countdown reaches zero?
The display switches to showing elapsed time since the target instead, so you can still see how long ago it happened.
Can I set multiple countdowns at once?
This tool shows one countdown at a time - open the page in multiple tabs if you need to track several countdowns simultaneously.
Is my data sent to a server?
No. The countdown runs entirely in your browser using your device's local clock.
Does this account for timezones?
The target time is set in your browser's local timezone, and the countdown reflects your local clock throughout.