Working Days Calculator
Count the working days between two dates, with both the start and end date included.
What this calculates
This calculator counts BOTH the start date and the end date. Monday to Friday is five working days, not four. It is worth saying plainly, because it is the one thing two people counting the same week will disagree about: subtracting one date from the other gives four, and misses the day you started on. If you want the gap between two dates rather than the days you will actually work, take one off the answer. A weekend here means Saturday and Sunday. That is the common working week in most of Europe and the Americas, but it is not universal — much of the Middle East rests on Friday and Saturday, and plenty of trades work Saturdays. Untick the box to count every day in the range instead. Public holidays are not taken off, because they differ by country, and often by region within a country. Count yours in the range and subtract them by hand for now. The count is pure date arithmetic and does not depend on where you or your computer are: the same two dates always give the same answer.
Formula
calendar days = days between the dates + 1 (both ends counted) weekend days = the Saturdays and Sundays inside that range working days = calendar days − weekend days
Example
Monday 10 August 2026 to Friday 14 August 2026 is 5 calendar days, none of them at the weekend, so 5 working days. Stretch the same range to Sunday 16 August and it becomes 7 calendar days, 2 of them at the weekend, and the working days stay at 5. A single date entered as both start and end is 1 calendar day — the day itself.
Frequently asked questions
Are the start and end dates counted?
Yes, both of them. Monday to Friday comes out as 5 working days, not 4, because the Monday you start on is a day you work. If you want the number of days BETWEEN two dates instead — the gap, not the days worked — subtract one from the answer.
Does this account for public holidays?
No. Public holidays vary by country and often by region within one country, so counting them automatically would be wrong more often than right. Work out how many fall inside your range and subtract them yourself. A version that knows your country's holidays is planned.
Which days count as the weekend?
Saturday and Sunday. That is the standard working week across most of Europe and the Americas, but not everywhere — much of the Middle East rests on Friday and Saturday, and many trades work Saturdays. If it does not match your week, untick the box and count every day instead.
Does my time zone change the answer?
No. The calculation is plain date arithmetic on the two dates you type, with no clock involved, so the same pair of dates gives the same answer anywhere in the world.
Can I count backwards, from a deadline?
Enter the earlier date first and the deadline second — the order of the two boxes is start then end. If the end date comes before the start date the calculator says so rather than guessing which one you meant.