Working Days Calculator
Count the number of working days (business days) between two dates, excluding weekends and public holidays. Supports US, UK, EU, and AU holidays plus custom holiday lists. Can add or subtract N working days to find a target date.
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Common Uses
Calculate payroll periods, project deadlines, SLA windows, contract durations, freelance delivery dates, and any business-day-counted timeline. Project managers use this to convert calendar deadlines into working-day budgets; HR uses it to count probation periods; freelancers use it to quote accurate delivery dates.
How Working Days Are Counted
Working days are Monday through Friday by default, minus any dates that fall on a recognized public holiday for the selected region. The default weekend is Saturday and Sunday; this can be changed in the options above. Custom holidays are matched against the date in your local timezone.
Fun Fact: The concept of a 'working day' dates back to the Industrial Revolution, when factory workers were typically given Sundays off. The five-day workweek as we know it today was popularized by Henry Ford in 1926, who found that shorter hours actually increased productivity.
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