Days Until Calculator
Count the days until (or since) any date, broken down into weeks and working days. Calculates in your browser.
Days until
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How it works
The tool counts whole days from your “counting from” date (today by default) to the target. If the target is in the past it shows how many days have passed instead, and it also breaks the gap down into weeks and counts the working days (Mon–Fri) in between.
Dates are handled in UTC, so the count never slips by a day around daylight-saving changes. Everything runs locally in your browser.
What this does
A days until calculator counts the days remaining until any date (or the days since a past date) broken down into weeks and working days.
How to use it
- Enter a target date.
- Read the days remaining or days since.
- See the breakdown into weeks.
- Check the working-day count to a deadline.
How it works
If the date is in the past, the tool switches to “days since”. Business days count the weekdays (Mon–Fri) between the two dates, not including today.
days until = target date − today
Understanding your result
The plain day count is the headline, but the working-days figure is the one that matters for anything that must happen in business hours, since weekends quietly eat into a deadline that looks comfortable on the calendar. If the date has passed, the tool flips to days-since, useful for tracking how long ago something happened.
Example
If today is 1 December, there are 24 days until 25 December.
Sources & methodology
Last updated .
Frequently asked questions
What if the date is in the past?
The tool automatically switches to “days since” and shows how many days have passed instead of remaining.
How are business days counted?
It counts the weekdays (Mon–Fri) between the two dates, not including the start date, so you can gauge working days to a deadline.
Is my data stored?
No. Everything is calculated locally in your browser.
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