Business days calculator
Calculator
The calculator needs JavaScript. The tables below give the same numbers for common cases.
How it is worked out
- Weekdays Monday to Friday are counted, both the start and end date included.
- Public holidays differ by country and year, so enter how many fall on weekdays in your range and they are subtracted.
| Inputs | Answer |
|---|---|
| Start date: 2026-11-02; End date: 2026-11-30; Public holidays to subtract: 1 | From Monday, November 2, 2026 to Monday, November 30, 2026 (both days counted) there are 20 business days after 1 holiday(s). |
| Start date: 2026-12-01; End date: 2026-12-31; Public holidays to subtract: 2 | From Tuesday, December 1, 2026 to Thursday, December 31, 2026 (both days counted) there are 21 business days after 2 holiday(s). |
| Start date: 2026-01-01; End date: 2026-12-31; Public holidays to subtract: 0 | From Thursday, January 1, 2026 to Thursday, December 31, 2026 (both days counted) there are 261 business days after 0 holiday(s). |
How to use it
The calculator counts weekdays, Monday to Friday, between the two dates with both days included. Public holidays differ by country, region and year, so enter how many fall on weekdays in your range and they are subtracted.
Use it for delivery times, notice periods and project plans.
Frequently asked questions
How do I count business days?
Count Monday to Friday, then subtract public holidays.
Are the start and end dates included?
Yes, both are counted when they are weekdays.
Does it know my holidays?
No; enter how many apply.
Method: standard arithmetic shown step by step; no outside data is used. Checked 2026-11-12.
About · How we verify this · Editorial policy · Corrections
General information only. Results are plain arithmetic on the numbers you enter; check anything important (money, health, school work) against your own records or the official source.