Here is a sample for calculating number of days within specific date range for weekdays only (exclude saturday and sunday). Design UI: Code: Option Explicit Function CalculateWeekdays( ByVal startDate As Date , ByVal endDate As Date ) As Integer Dim numWeekdays As Integer Dim totalDays As Integer Dim WeekendDays As Integer Dim i As Integer numWeekdays = 0 WeekendDays = 0 totalDays = DateDiff("d", startDate, endDate) + 1 For i = 1 To totalDays If DatePart("w", startDate) = 1 Then WeekendDays = WeekendDays + 1 End If If DatePart("w", startDate) = 7 Then WeekendDays = WeekendDays + 1 End If startDate = DateAdd("d", 1, startDate) Next numWeekdays = totalDays - WeekendDays CalculateWeekdays = numWeekdays End Function Private Sub Command1_Click() Label1.Caption = CalculateWeekdays(Me.DTPicker1.Value, Me.DTPicker2.Value) End Sub Runtime: Click here if you like this article. Sumber http://rani-irsan.blogspot.com