Private Sub Worksheet_Change(ByVal Target As Range)
Dim TimeStrText As String
On Error GoTo EndMacro
If Application.Intersect(Target, Range("A1, B1")) Is Nothing Then
Exit Sub
End If
If Target.Cells.Count > 1 Then
Exit Sub
End If
If Target.Value = "" Then
Exit Sub
End If
Application.EnableEvents = False
With Target
If .HasFormula = False Then
Select Case Len(.Value)
Case 1 ' e.g., 1 = 00:01
TimeStrText = "00:0" & .Value
Case 2 ' e.g., 12 = 00:12 AM
TimeStrText = "00:" & .Value
Case 3 ' e.g., 735 = 7:35 AM
TimeStrText = Left(.Value, 1) & ":" & _
Right(.Value, 2)
Case 4 ' e.g., 1234 = 12:34
TimeStrText = Left(.Value, 2) & ":" & _
Right(.Value, 2)
Case Else
Err.Raise 0
End Select
.Value = TimeValue(TimeStrText)
End If
End With
Application.EnableEvents = True
Exit Sub
EndMacro:
MsgBox "Are you sure you want to enter this"
Application.EnableEvents = True
End Sub