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Tip of the Day
Language: VB4,VB5,VB6,VBS
Expertise: Intermediate
Oct 7, 2000



Application Security Testing: An Integral Part of DevOps

BusinessDateAdd - Add or subtract a number of business days from a date

' add or subtract a number of business days from a date
' Note that it doesn't take Christmas, Easter and
' other holidays into account

Function BusinessDateAdd(ByVal days As Long, ByVal StartDate As Date, _
    Optional ByVal SaturdayIsHoliday As Boolean = True) As Date
    Do While days
        ' increment or decrement the date
        StartDate = StartDate + Sgn(days)
        ' check that it is a week day
        If Weekday(StartDate) <> vbSunday And (Weekday(StartDate) <> vbSaturday _
            Or Not SaturdayIsHoliday) Then
            ' days becomes closer to zero
            days = days - Sgn(days)
        End If
    BusinessDateAdd = StartDate
End Function
Francesco Balena
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