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.
Planners differ in inclusivity conventions — some count exclusive of the end date — so verify against your payroll or project definition before using the figure for invoicing. For multi-country schedules, count each jurisdiction's holidays separately; a day that is a holiday in one country may be a workday in another.
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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. Formula: Work days = total days - weekends - holidays (Mon-Fri count via businessDays)
Work Days Calculator: Calculate work days between dates: count weekdays Mon-Fri, exclude holidays, see total days and weekends. Formula: Work days = total days - weekends - holidays (Mon-Fri count via businessDays). Example: From 2026-01-01 to 2026-01-31: total 31 days, 22 work days (Mon-Fri), 9 weekend days.
Calculate work days between dates: count weekdays Mon-Fri, exclude holidays, see total days and weekends. Formula: Work days = total days - weekends - holidays (Mon-Fri count via businessDays)
| Field | What to enter |
|---|---|
| Start date | Enter a value |
| End date | Enter a value |
| Holidays to exclude (optional) | e.g. 2 |
All fields use the exact formulas shown below — results include step-by-step breakdowns you can verify by hand.
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.
Planners differ in inclusivity conventions — some count exclusive of the end date — so verify against your payroll or project definition before using the figure for invoicing. For multi-country schedules, count each jurisdiction's holidays separately; a day that is a holiday in one country may be a workday in another.
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From 2026-01-01 to 2026-01-31: total 31 days, 22 work days (Mon-Fri), 9 weekend days. With 1 holiday, 21 work days.
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