Business days usually mean weekdays from Monday to Friday. Saturdays and Sundays are normally excluded, though holidays may also be excluded in some business settings.
Use the calculator first, then read the guide below to understand the formula and examples.
Direct answer
To count business days, count all dates in the range and remove Saturdays and Sundays.
Basic method
Start from the first date, move day by day to the end date, and count only days where the day is Monday, Tuesday, Wednesday, Thursday, or Friday.
Example
If the date range is Monday to Friday, there are 5 business days. If the range is Friday to Monday, there are 2 business days: Friday and Monday.
Important limitation
A basic business days calculator usually excludes weekends. It may not automatically exclude public holidays unless holiday rules are added.
When this is useful
Business day counts are useful for delivery estimates, project timelines, payment deadlines, work schedules, and service-level agreements.
FAQs
Are Saturdays business days?
Usually no. Most business day calculations exclude Saturdays.
Are holidays business days?
Usually no, but holiday rules depend on the country and business.
Is Monday to Friday 5 business days?
Yes, if there are no holidays in that period.