How to use Countdown Calculator
- Choose the target date.
- Optional: choose a time of day. Without it, midnight at the start of that day is used.
- Read the days, hours and minutes remaining. Press Calculate to refresh.
About this tool
The calculation compares the target with the current time on your device, in your own time zone. Use it for holidays, birthdays, exams, launches and deadlines. The result does not tick by itself; press Calculate to update it. This avoids a screen reader announcing the time every second.
Daylight-saving changes between now and the target can move the hours by one, because the calculation uses real elapsed time.
Privacy: This tool runs in your browser. What you type or choose is not sent to a server by this website.
Common questions
Is it accurate to the second?
It is accurate to the minute, based on your device clock. Check that your device clock is correct.
Can I count down to today?
Yes. Choose today with a time later in the day.