GWN Tools · Date & Time

Business Days Calculator

Count the working days between two dates, or add a number of business days to a start date. Weekends are excluded, and you can list holidays to skip them too.

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business days
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Calendar days
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Weekend days

Business days are Mon–Fri. In count mode the end date is included. Dates use local time.

About the business days calculator

What does this calculator do? It counts business days between two dates or adds a number of business days to a start date, excluding weekends and any holidays you list.

What counts as a business day?

A business day is any weekday from Monday through Friday. Saturdays and Sundays are excluded, and any dates you add to the holiday list are excluded as well.

How do you count business days between two dates?

The calculator counts each day after the start date up to and including the end date, adding one for every weekday that is not a listed holiday. For example, Monday to the following Monday is five business days.

How do you add business days to a date?

Switch to add mode, enter a start date and a number of business days, and the calculator steps forward one day at a time, counting only weekdays that are not holidays, until it has counted that many business days. The final date is the result.