Business days calculator
Working days between dates, skipping weekends and the holidays you pick.
31 calendar days, 8 skipped as weekends or holidays
Upcoming US federal holidays
| Holiday | Date | Falls on |
|---|---|---|
| Labor Day | September 7, 2026 | Monday |
| Columbus Day | October 12, 2026 | Monday |
| Veterans Day | November 11, 2026 | Wednesday |
| Thanksgiving | November 26, 2026 | Thursday |
| Christmas Day | December 25, 2026 | Friday |
| New Year's Day | January 1, 2027 | Friday |
| Martin Luther King Jr. Day | January 18, 2027 | Monday |
| Presidents' Day | February 15, 2027 | Monday |
Holidays falling on a weekend are usually observed on the adjacent Friday or Monday; that observed date is not applied automatically — add it to the extra holidays field if it matters.
How it works
Business-day counting excludes Saturdays and Sundays, and usually public holidays too. The count is inclusive of the start date and exclusive of the end date, which is the convention contracts and SLAs generally use.
Why holidays have to be supplied
Public holidays are national, sometimes regional, and change from year to year — Easter moves, UK bank holidays shift when they fall on a weekend, and some countries have holidays fixed to a lunar calendar. The US federal set is computed here because its rules are stable and algorithmic; anything else needs the extra-holidays field.
Rules like “within 10 business days”
Almost always means the tenth working day after the trigger, not counting the trigger day itself. Use “add business days” with the start date set to the trigger. Regulations occasionally define it differently, so it is worth reading the exact wording when a deadline is binding.