Business Days Calculator
Count Monday-to-Friday working days or move a deadline forward by a set number of business days. The calculation stays deterministic and runs in your browser.
iWeekends excluded. Public holidays are not included automatically.
Use it without guessing.
- 01Choose count-between or add-days mode.
- 02Enter the date range or start date and day count.
- 03Decide whether the start and end dates should be included.
What the number means
This tool treats Saturday and Sunday as non-working days. It does not automatically exclude national, regional or company holidays.
Contract and shipping deadlines may use specific local definitions of a business day. Confirm the governing rule before relying on the result.
Before you rely on the output
Are public holidays excluded?+
No. Holiday calendars differ by country, region and organization. Subtract applicable holidays separately.
Is the end date included?+
The calculator provides an include-end option so you can match your counting convention.
Does it handle negative day counts?+
Add-days mode supports moving backward when a negative number is entered.