Date & Time Tools
Business Days Calculator
Count weekdays between dates while excluding weekends and optional holidays.
Business days
Calendar days26
Weekends6
Holidays1
Business days19
weekdays
6 weekend days and 1 listed holidays are excluded.
What is business days calculator?
Calculate working days between two dates for delivery estimates, project schedules, invoice terms and staffing plans. Add holiday dates to remove them from the count.
Example calculation
Example: from Monday, May 4, 2026 to Friday, May 29, 2026, including the end date and excluding one holiday, the calculator shows 19 business days.
When to use business days calculator
- Estimate delivery windows
- Plan working deadlines
- Count invoice payment terms
- Exclude public holidays
FAQ
What counts as a business day?
Monday through Friday count as business days. Saturdays and Sundays are excluded automatically.
Are weekends excluded?
Yes. Saturdays and Sundays are excluded from the business day count.
Can I include holidays?
Yes. Enter holiday dates in YYYY-MM-DD format to exclude them from the business day count.
How many business days are in a year?
A typical year has about 260 to 262 weekdays before public holidays are excluded.