Excel und VBA: Formeln, Programmierung, Lösungen

StandardModule: Modul1

Function ATage(datStart As Date, datEnd As Date, rng As Range)
   Dim var As Variant
   Dim lDay As Long, lCount As Long
   For lDay = datStart To datEnd
      If WorksheetFunction.Weekday(lDay, 2) < 6 Then
         var = Application.Match(lDay, rng, 0)
         If IsError(var) Then
            lCount = lCount + 1
         End If
      End If
   Next lDay
   ATage = lCount
End Function

    

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