Working Days Calculator

Count the number of business days (Mon–Fri) between two dates.

Start Date

End Date

How the Working Days Calculator Works

The working days calculator on daycalctools.com counts every calendar day between your two dates, then subtracts any days that fall on a Saturday or Sunday. The result is the number of standard business days (Monday through Friday) in that period. The tool also shows the total calendar days and the number of weekend days excluded.

All calculations run instantly in your browser. The tool loops through each date in the selected range, checks whether it is a weekday or weekend day, and tallies the result. This approach is precise regardless of month lengths or leap years, since every individual date is checked directly.

When Do You Need to Count Working Days?

Business day calculations are needed in a wide range of professional and personal contexts:

Project planning — Estimate how many working days a project phase will take, excluding weekends your team is not available.
Contract deadlines — Many contracts specify delivery or payment terms in "business days" rather than calendar days.
SLA (service-level agreement) tracking — Customer service SLAs often measure response time in business hours or business days.
Payroll periods — Calculate the number of working days in a pay period to verify payslip accuracy.
Legal notice periods — Notice periods for employment, tenancy, or legal filings are often measured in working days.
Leave and absence tracking — Calculate how many working days an employee has been absent or will be on leave.
Shipping and delivery estimates — Retailers and couriers often quote delivery times in business days, not calendar days.

Frequently Asked Questions

Does the calculator account for public holidays?

No — this tool counts weekdays (Monday through Friday) only, without deducting public holidays. Public holidays vary by country and region, so you would need to manually subtract any public holidays that fall within your date range if they are relevant to your calculation.

Are the start and end dates included in the count?

Yes — both the start date and the end date are included in the count if they are weekdays. For example, if both the start date (Monday) and end date (Friday) are weekdays, the result for a single week would be 5 working days.

What counts as a "working day" in this calculator?

A working day is any day that falls Monday through Friday. Saturdays and Sundays are excluded. The tool does not make assumptions about any specific country's working week (e.g., some Middle Eastern countries have a Sunday–Thursday work week), so always verify whether this matches the convention in your region.

Can I calculate working days if the end date is before the start date?

Yes. The tool automatically uses whichever date is earlier as the start and whichever is later as the end, so the order you enter the dates does not matter.

How do I calculate the date that is N working days from today?

Use the Add/Subtract Days tool to add a number of calendar days to today, then check the working days result. Alternatively, count forward on a calendar, skipping weekends manually. A future feature may automate this directly.