Function XDATE(y, m, d, Optional fmt As String) As String If IsMissing(fmt) Then fmt = "Short Date" XDATE = Format(DateSerial(y, m, d), fmt)End Function

Function XDATEADD(xdate1, days, Optional fmt As String) As String Dim TempDate As Date If IsMissing(fmt) Then fmt = "Short Date" xdate1 = RemoveDay(xdate1) TempDate = DateValue(xdate1) XDATEADD = Format(TempDate + days, fmt)End Function

Function XDATEDIF(xdate1, xdate2) As Long xdate1 = RemoveDay(xdate1) xdate2 = RemoveDay(xdate2) XDATEDIF = DateValue(xdate1) - DateValue(xdate2)End Function

Function XDATEYEARDIF(xdate1, xdate2) As Long Dim YearDiff As Long xdate1 = RemoveDay(xdate1) xdate2 = RemoveDay(xdate2) YearDiff = Year(xdate2) - Year(xdate1) If DateSerial(Year(xdate1), Month(xdate2), Day(xdate2)) < CDate(xdate1) Then YearDiff = YearDiff - 1 XDATEYEARDIF = YearDiffEnd Function

Function XDATEYEAR(xdate1) xdate1 = RemoveDay(xdate1) XDATEYEAR = Year(DateValue(xdate1))End Function

Function XDATEMONTH(xdate1) xdate1 = RemoveDay(xdate1) XDATEMONTH = Month(DateValue(xdate1))End Function

Function XDATEDAY(xdate1) xdate1 = RemoveDay(xdate1) XDATEDAY = Day(DateValue(xdate1))End Function

Function XDATEDOW(xdate1) xdate1 = RemoveDay(xdate1) XDATEDOW = Weekday(xdate1)End Function

Private Function RemoveDay(xdate1)

' Remove day of week from string Dim i As Integer Dim Temp As String Temp = xdate1 For i = 0 To 6 'Unabbreviated day names Temp = Application.Substitute(Temp, Format(DateSerial(1900, 1, 0), "dddd"), "") Next i For i = 0 To 6 'Abbreviated day names Temp = Application.Substitute(Temp, Format(DateSerial(1900, 1, 0), "ddd"), "") Next i RemoveDay = TempEnd Function

Sub SetMacroOptions()' Add descriptions, and put in the Date & Time function category Dim HelpFile As String HelpFile = ThisWorkbook.Path & "\xdate.hlp"' On Error Resume Next' With Application' .MacroOptions macro:="XDATE", Description:="(ADD-IN FUNCTION) Returns a date for any year between 0100 and 9999. fmt is an optional date formatting string.", Category:=2, HelpContextID:=200, HelpFile:=HelpFile' .MacroOptions macro:="XDATEADD", Description:="(ADD-IN FUNCTION) Returns a date, incremented by a specified number of days. fmt is an optional date formatting string.", Category:=2, HelpContextID:=300, HelpFile:=HelpFile' .MacroOptions macro:="XDATEDIF", Description:="(ADD-IN FUNCTION) Returns the number of days between date1 and date2 (date1-date2).", Category:=2, HelpContextID:=400, HelpFile:=HelpFile' .MacroOptions macro:="XDATEYEARDIF", Description:="(ADD-IN FUNCTION) Returns the number of full years between date1 and date2 (date1-date2). Useful for calculating ages.", Category:=2, HelpContextID:=500, HelpFile:=HelpFile' .MacroOptions macro:="XDATEYEAR", Description:="(ADD-IN FUNCTION) Returns the year for a date.", Category:=2, HelpContextID:=600, HelpFile:=HelpFile' .MacroOptions macro:="XDATEMONTH", Description:="(ADD-IN FUNCTION) Returns the month for a date.", Category:=2, HelpContextID:=700, HelpFile:=HelpFile' .MacroOptions macro:="XDATEDAY", Description:="(ADD-IN FUNCTION) Returns the day for a date.", Category:=2, HelpContextID:=800, HelpFile:=HelpFile' .MacroOptions macro:="XDATEDOW", Description:="(ADD-IN FUNCTION) Returns an integer corresponding to the weekday for a date (1=Sunday).", Category:=2, HelpContextID:=900, HelpFile:=HelpFile' End With 'If GetSetting(APPNAME:="JWalk", section:="ExtendedDateFunctions", Key:="FunctionMsg", Default:=1) = 1 Then UserForm1.ShowEnd Sub

Y ADEMAS EN THIS WORKBOOKPrivate Sub Workbook_Open() SetMacroOptionsEnd Sub