Business Days Calculator
Calculate business days between two dates, excluding weekends and any custom holidays you specify — without relying on any official holiday calendar, which varies by country, region and year.
How is it calculated?
Calendar days = every day in the period, including both endpoints (Monday through Friday of the same week is 5 calendar days). Business days = calendar days minus any Saturdays and Sundays you don't mark as working days, minus any date you list under "holidays". Excluded days = calendar days − business days.
Examples
A full work week (Monday to Friday)
5 calendar days, 5 business days, 0 excluded.
Two weeks with one custom holiday
15 calendar days, 10 business days, 5 excluded (4 weekend days + 1 holiday).
Use cases
A few common examples:
- Calculate how many working days are left until a deadline.
- Estimate a project's working duration excluding weekends.
- Plan shifts or production schedules.
- Add your own company or country holidays for a more precise calculation.