Date Difference Calculator (Business/Calendar Days)
Calculate business days and weekdays between dates
Common Scenarios
Practical ways to use business-day and calendar-day differences.
Business days between dates
- Exclude weekends
- Optionally exclude public holidays
Calendar-day span
- Simple day gaps
- Inclusive vs exclusive options
Compliance timelines
- Weekday-only SLAs
- Bank holiday considerations
Best Practices
- Clarify inclusive/exclusive boundaries before calculating
- Normalize time zone at 00:00 to avoid DST issues
- Use country holiday calendars for accurate business days
Regional Notes
- Observed holidays may shift to Monday
- Regional variations exist within the same country
Terminology
- Business/working days exclude weekends and may exclude public holidays.
- Calendar days include all days; banking days can exclude bank holidays.
Frequently Asked Questions
Which Tool Should I Use?
Business days between two dates
Date Difference CalculatorAdd/subtract days, weeks, months, years
Date Add/Subtract CalculatorAdd N business days from a start date
Workday CalculatorSimple calendar days between dates
Days Between Dates Calculator