Business Days Calculator
Count working days between two dates, or add business days to a date.
How it works
- Choose whether to count working days or add them to a date.
- Enter the dates (or the number of days to add).
- Optionally list public holidays to skip.
- Read the business days, weekend days and resulting date.
Frequently asked questions
What counts as a business day?
Monday to Friday, excluding any holidays you list. Saturdays and Sundays are always treated as weekend days.
Is the end date counted?
By default the count runs up to, but not including, the end date. Choose "Count the end date" to include it.
How do I add public holidays?
Type or paste holiday dates in YYYY-MM-DD format, one per line or separated by commas. Holidays that fall on weekends are simply ignored.
Can I count backwards?
Yes. In add mode, enter a negative number of business days to find an earlier working day.
Working days, not calendar days
Delivery times, payment terms and legal deadlines are often counted in business days. This calculator skips weekends and any public holidays you list, so your dates line up with the real working calendar.
Add business days to a date
Need to know when "10 working days" from today falls? Switch to add mode for the exact date, with weekends and your holidays skipped automatically.