Date calculator
How many days until a deadline, how many working days in a sprint, what date is 90 days from today. Pick the dates; the maths is done as you type.
Days between two dates
From Tue, Oct 27, 2026 to Thu, Nov 26, 2026 is 30 days.
Days
30
Weeks
4 and 2 days
Years, months, days
30 days
Working days (Mon–Fri)
22
Add or subtract days from a date
Tue, Oct 27, 2026 plus 30 days is Thu, Nov 26, 2026, week 48.
Week numbers
Looking for the week a date falls in? Every ISO week of the year, with its dates.
What week is it?Planning a meeting?
The meeting planner finds the hours when everyone, in every time zone, is at work.
Open the meeting plannerFrequently asked questions
As the number of midnights between them: from Monday to the following Monday is 7 days. The first date is not counted and the last is, so a deadline 30 days from today falls on the date the calculator shows.
Monday to Friday. Public holidays are not taken off, because they differ by country and region; subtract them yourself if they fall in the period.
The years-months-days result is calendar-wise: from January 31 to February 28 is one month minus 3 days, not 28 days. The day count next to it is the exact number of days.