Pick the target date and time using the datetime-local picker.
Click Start Countdown to begin the live countdown.
Watch the days, hours, minutes, and seconds tick down in real time.
Click Stop at any time or let it reach zero to trigger the alert.
All calculations and data stay in your browser. Nothing is uploaded or stored.
Get instant, precise results with no waiting. Just input and calculate.
No registration, no fees, no daily limits. Use any tool as often as you need.
Fully responsive. Works on desktop, tablet, iPhone, and Android.
Yes. Any future date and time works. The tool validates that the target is in the future before starting.
The timer runs as long as the browser tab is open. It pauses if you close the tab but restarts from the current time if you reopen it.
A visual alert displays and a short beep sound plays to notify you that the time is up.