Set a target date and time for a countdown, or use the stopwatch. All runs in your browser.
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About Countdown Timer
Count down to an event or use the stopwatch to measure elapsed time. No signup — everything runs in your browser.
Frequently Asked Questions
Is the countdown accurate?
The countdown uses your device clock. If you leave the tab in the background, some browsers may throttle timers; the display updates when you return.
Is my data sent to a server?
No. The timer runs entirely in your browser. No data is uploaded.