Business Day Calculator
Last updated: 2026-06-25
Business (working) days are the weekdays between a start and end date, excluding Saturdays, Sundays and any holidays you enter; both the start and end dates are included.
Example: 2026-06-01 (Mon) to 2026-06-05 (Fri) is 5 business days.
Enter the date range
Business days (excluding weekends & holidays)
0 days
| Type | Days |
|---|---|
| Total days (inclusive) | |
| Weekdays (Mon–Fri) | |
| Weekend days (Sat–Sun) | |
| Holidays excluded (on weekdays) | |
| Business days (final) |
How to use
- Enter the date range — pick a start date and end date from the calendar. Both dates are included.
- Enter holidays (optional) — list holidays to exclude in YYYY-MM-DD format, separated by commas or new lines.
- View the result — press Calculate to see total days, business days, weekday and weekend days, and the number of holidays excluded.
How to count business and working days
A business (working) day is any calendar day that is not a weekend or a holiday. Business day counts are commonly used for prorated pay, due dates and payment terms, and project scheduling. This calculator walks through every day between the two dates, checks the day of week, and excludes Saturdays and Sundays as weekends and any dates you enter as holidays.
| Type | Counted as a business day? |
|---|---|
| Monday–Friday (not a holiday) | Included (business day) |
| Saturday / Sunday | Excluded (weekend) |
| Weekday that is an entered holiday | Excluded (holiday) |
| Holiday that falls on a weekend | Already excluded as a weekend |
Dates are handled in UTC, so daylight saving and time-zone changes do not affect the count. Because public holidays differ by year and country, they are not applied automatically; you enter them yourself. Always confirm official public holidays against your government's calendar.
Frequently asked questions (FAQ)
How are business (working) days calculated?
Business days are counted day by day from the start date to the end date, excluding Saturdays and Sundays (weekends) and any holidays you enter. Both the start and end dates are included in the count.
Are both the start and end dates included?
Yes. This calculator counts inclusively, so both the start date and end date are part of the total. For example, Monday to Friday is 5 business days.
Are holidays excluded automatically?
No. Holidays vary by country and year, so they are not applied automatically. Enter the public holidays you want to exclude in YYYY-MM-DD format and they will be removed from the business day count even if they fall on a weekday.
What if the start date is later than the end date?
If the two dates are in the wrong order, the calculator automatically sorts them, so you get the same correct result with no error.
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Last updated: 2026-06-25