Working Days Calculator
Free working days calculator. Count business days between two dates, excluding weekends and your own list of holidays, with a full breakdown — private in your browser.
Working days between two dates
Which days count as the weekend?
One date per line in yyyy-mm-dd format. Blank or invalid lines are ignored.
Total days
Working days
Weekend days
Holidays excluded
🔒 Dates are processed in your browser — nothing is uploaded.
Free Working Days Calculator
This free online working days calculator counts the number of business days between any two dates. It loops through every day in your range, skips the days you mark as the weekend, and removes any public holidays you paste in — then shows you the totals as clear stat cards. It’s free, instant and runs entirely in your browser, so the dates and holidays you enter are never uploaded.
How to use the working days calculator
- Pick a start date and an end date for your range.
- Choose whether to include the end date using the toggle (it is on by default).
- Tick which weekdays count as the weekend — Saturday and Sunday are pre-selected.
- Optionally paste your holidays, one
yyyy-mm-dddate per line, to exclude them too. - Click Calculate working days to see total days, working days, weekend days and holidays excluded.
How business days are counted
A working day (or business day) is any calendar day that is not a weekend and not a public holiday. This tool counts business days by stepping through each date in your range one at a time. For every day it checks two things: is this weekday one you marked as a weekend, and does this exact date appear in your holiday list? If a day is a weekend it is added to the weekend total. If it is a holiday that fell on a day that would otherwise have been a working day, it is added to the holidays-excluded total. Everything else is counted as a working day. Because the weekend is fully configurable, the calculator works just as well for a six-day work week or a Friday–Saturday weekend as it does for the standard Saturday and Sunday.
Counting business days this way matters in a lot of everyday situations. Project deadlines and delivery estimates are almost always quoted in working days rather than calendar days, so you need to know how many there really are between today and a due date. Payroll and attendance often depend on the number of working days in a pay period. And service agreements (SLAs) such as “we respond within five business days” need an accurate business-day count that ignores weekends and the holidays your team observes. Excluding the right holidays is what separates a rough estimate from a number you can actually plan around.