;------------------------------------------------------------------------------------------------------------------------------------------
#DefineFunction udfIsWeekDay (strYmdHms)
intJulianDow = (5 + TimeJulianDay (strYmdHms)) mod 7
If 6 == intJulianDow Then Return @FALSE
If 0 == intJulianDow Then Return @FALSE
Return @TRUE
; This user defined function "udfIsWeekDay" determines wether a given date is a weekday or not.
; The function returns a boolean value of @FALSE (0) or @TRUE (1).
; Weekdays are the days in the range Monday..Friday.
#EndFunction
;------------------------------------------------------------------------------------------------------------------------------------------

;------------------------------------------------------------------------------------------------------------------------------------------
#DefineFunction udfIsWeekendDay (strYmdHms)
intJulianDow = (5 + TimeJulianDay (strYmdHms)) mod 7
If 6 == intJulianDow Then Return @TRUE
If 0 == intJulianDow Then Return @TRUE
Return @FALSE
; This user defined function "udfIsWeekendDay" determines wether a given date is a weekendday or not.
; The function returns a boolean value of @FALSE (0) or @TRUE (1).
; Weekenddays are the days in the range Saturday..Sunday.
#EndFunction
;------------------------------------------------------------------------------------------------------------------------------------------


; Test.

strDT1 = "2002:07:19" ; Friday.
strDT2 = "2002:07:20" ; Saturday.
strDT3 = "2002:07:21" ; Sunday.
strDT4 = "2002:07:22" ; Monday.
strDT5 = TimeYmdHms ()

bIsWeekDay1 = udfIsWeekDay (strDT1) ; @TRUE.
bIsWeekDay2 = udfIsWeekDay (strDT2) ; @FALSE.
bIsWeekDay3 = udfIsWeekDay (strDT3) ; @FALSE.
bIsWeekDay4 = udfIsWeekDay (strDT4) ; @TRUE.
bIsWeekDay5 = udfIsWeekDay (strDT5)

bIsWeekendDay11 = udfIsWeekendDay (strDT1) ; @FALSE.
bIsWeekendDay12 = udfIsWeekendDay (strDT2) ; @TRUE.
bIsWeekendDay13 = udfIsWeekendDay (strDT3) ; @TRUE.
bIsWeekendDay14 = udfIsWeekendDay (strDT4) ; @FALSE.
bIsWeekendDay15 = udfIsWeekendDay (strDT5)

bIsWeekendDay21 = !udfIsWeekDay (strDT1) ; @FALSE.
bIsWeekendDay22 = !udfIsWeekDay (strDT2) ; @TRUE.
bIsWeekendDay23 = !udfIsWeekDay (strDT3) ; @TRUE.
bIsWeekendDay24 = !udfIsWeekDay (strDT4) ; @FALSE.
bIsWeekendDay25 = !udfIsWeekDay (strDT5)

Exit