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Free Deadline & Countdown Calculator

Calculate days, hours, and working days until any deadline — with live countdown timer.

How it works

Set the exact date and time of your deadline.

Toggle whether to exclude weekends from the working days count.

See calendar days, working days, hours, and minutes remaining.

Track up to 5 deadlines at once, sorted by nearest.

Track client project deadlines and estimate remaining working time.

Count days until exam dates, submission deadlines, or semester end.

Calculate working days to a milestone for scheduling.

Count business days until a response or filing deadline.

What counts as a working day?

Mon–Fri when "exclude weekends" is enabled. Public holidays are not automatically excluded — add them manually if needed.

Can I track multiple deadlines?

Yes — click "Add another deadline" to track up to 5 deadlines at once, sorted from nearest to furthest.

Is the countdown live?

Yes — the display updates every second when the deadline is less than 24 hours away.

What happens if a deadline is overdue?

The status changes to "Overdue" and shows how many days/hours have passed.

Is my data saved?

Deadlines are not saved between sessions. Bookmark the page and re-enter as needed.

Is my data private?

Yes — all calculations run in your browser with no data sent anywhere.