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Calculate work days between dates: count weekdays Mon-Fri, exclude holidays, see total days and weekends.
Calculate work days between dates: count weekdays Mon-Fri, exclude holidays, see total days and weekends.
Enter values above and click Calculate — results will appear here with the formula explained.
Work days count Monday through Friday inclusive between two dates, excluding weekends automatically. Optional holiday input subtracts public holidays you list from that weekday count, yielding billable or payroll-eligible days. The algorithm is inclusive of both start and end dates when they fall on weekdays, so a Monday-to-Friday span always returns five days before holidays — a convention that must be verified against your payroll or contract before invoicing, since some systems count exclusive of the end date.
Weekend logic is straightforward but holidays are the complexity: automatic calendars vary by country, state and employer (US federal 11 days, UK 8 bank holidays, UAE Fri-Sat weekends). This calculator avoids wrong assumptions by requiring manual holiday entry — more flexible across jurisdictions, but also more honest than a tool that silently assumes US federal. For multi-country teams, run each jurisdiction's holidays separately; a day that is a holiday in one country is a workday in another, and double-counting or omission both misstate cross-border timelines.
Common use cases differ in granularity: project managers multiply work days by daily rate to estimate cost; HR uses them for leave balances and probation clocks; freelancers convert them to billable days; legal counts business days for notice periods and SLA contracts. In each case the 'holiday' definition changes — a company shutdown may be a workday for contractors but not employees — so define whose calendar governs the count before running the numbers.
Edge cases matter: a date range that starts on a Sunday and ends on a Saturday contains zero weekend endpoints but five internal weekends; reversing start and end still returns the same work-day count because duration is absolute; single-day ranges return 1 if weekday, 0 if weekend. Partial days (half-day leave, part-time schedules) are not modeled — multiply the result by your fraction (0.5 for half days) after calculation, or split the range into AM/PM segments.
Related time math lives beside this calculator: business-days-calculator handles the same logic with optional holiday calendars, date-difference-calculator shows calendar days including weekends, days-between-dates gives raw duration, and time-duration converts hours. Choose the variant whose inclusivity and holiday handling match your invoicing or contractual definition — consistency matters more than which convention you pick.
This is planning arithmetic based on the Gregorian calendar, handling leap years and month boundaries correctly, but it is not legal, payroll or SLA advice. For binding deadlines, confirm the governing calendar (business vs calendar days), holiday schedule and count convention in writing with payroll, counsel or the counterparty.
Calculate work days between dates: count weekdays Mon-Fri, exclude holidays, see total days and weekends. Formula: Work days = total days − weekends − holidays. Example: From 2026-01-01 (Thu) to 2026-01-31 (Sat): total 31 days, 22 work days (Mon–Fri), 9 weekend days.
Work days count Monday through Friday inclusive between two dates, excluding weekends automatically. Optional holiday input subtracts public holidays you list from that weekday count, yielding billable or payroll-eligible days. The algorithm is inclusive of both start and end dates when they fall on weekdays, so a Monday-to-Friday span always returns five days before holidays — a convention that must be verified against your payroll or contract before invoicing, since some systems count exclusive of the end date.
Weekend logic is straightforward but holidays are the complexity: automatic calendars vary by country, state and employer (US federal 11 days, UK 8 bank holidays, UAE Fri-Sat weekends). This calculator avoids wrong assumptions by requiring manual holiday entry — more flexible across jurisdictions, but also more honest than a tool that silently assumes US federal. For multi-country teams, run each jurisdiction's holidays separately; a day that is a holiday in one country is a workday in another, and double-counting or omission both misstate cross-border timelines.
Common use cases differ in granularity: project managers multiply work days by daily rate to estimate cost; HR uses them for leave balances and probation clocks; freelancers convert them to billable days; legal counts business days for notice periods and SLA contracts. In each case the 'holiday' definition changes — a company shutdown may be a workday for contractors but not employees — so define whose calendar governs the count before running the numbers.
Edge cases matter: a date range that starts on a Sunday and ends on a Saturday contains zero weekend endpoints but five internal weekends; reversing start and end still returns the same work-day count because duration is absolute; single-day ranges return 1 if weekday, 0 if weekend. Partial days (half-day leave, part-time schedules) are not modeled — multiply the result by your fraction (0.5 for half days) after calculation, or split the range into AM/PM segments.
Related time math lives beside this calculator: business-days-calculator handles the same logic with optional holiday calendars, date-difference-calculator shows calendar days including weekends, days-between-dates gives raw duration, and time-duration converts hours. Choose the variant whose inclusivity and holiday handling match your invoicing or contractual definition — consistency matters more than which convention you pick.
This is planning arithmetic based on the Gregorian calendar, handling leap years and month boundaries correctly, but it is not legal, payroll or SLA advice. For binding deadlines, confirm the governing calendar (business vs calendar days), holiday schedule and count convention in writing with payroll, counsel or the counterparty.
From 2026-01-01 (Thu) to 2026-01-31 (Sat): total 31 days, 22 work days (Mon–Fri), 9 weekend days. With 1 holiday on a weekday, 21 work days remain. For a $600 daily rate that is $12,600 billable. A half-time schedule (0.5) on the same span is 10.5 billable-day equivalents — multiply after, since the calculator counts whole work days.
Formulas are standard public references (see our methodology). External standards are cited in the text where they apply.
Last reviewed: September 2026 · Report an error