Working Days Calculator
Count business days between dates or add business days from a date — with public holidays for 5 countries.
What is a Working Days Calculator?
A working days calculator (also called a business days calculator) counts the weekdays between two dates while skipping weekends and public holidays — the unit payroll, contracts, SLAs, and project plans actually run on. Why it matters: a shipping deadline of “5 business days” from December 22 lands somewhere around January 3 because Christmas Day, Boxing Day, and New Year's Day are public holidays in most jurisdictions. Calendar-day math gives you December 27; business- day math gives you the right answer. This calculator runs in two modes — count business days between two dates, or add (or subtract) a number of business days from a starting date — with bundled public-holiday calendars for the US, UK, India, Germany, and Australia. Pair it with the Date Difference Calculator for full duration breakdowns, the Days Until Calculator for live deadline countdowns, or the Day of Week Calculator to verify the weekday of any computed date.
Start date
End date
Holiday calendar
US · United States
Subtract holidays
Loading United States holidays…
How to use this tool
- 1Pick a mode'Between two dates' counts business days inside a range. 'Add business days' projects forward (or backward) from a start date.
- 2Enter dates and countBoth date inputs default to today. In add-mode, the count field accepts negative values for backward projection.
- 3Choose a countryPick US, UK, India, Germany, or Australia — the calendar's national holidays are subtracted automatically.
- 4Read the result and skipped holidaysThe headline shows business days; below, every holiday inside your range is listed by name and date so the math is transparent.