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Calculate the exact number of calendar days, business working days, weeks, and months between any two dates, or add/subtract days to find future dates.
Equal to 21 weeks and 5 days (4 months).
In a standard 365-day year, there are typically 260 to 261 working weekdays (Monday through Friday) and 104 to 105 weekend days (Saturday and Sunday).
Accounting Rule: Accounting and legal notice periods count business days by excluding Saturdays, Sundays, and official statutory public holidays.
Authored by UseCOS Research & Engineering.