Converting formula to a code

Friend, Thanks for your great help...This code is awesome it works great!!!!

But in my original excel instead of column A,B and C,D i have the columns as Col O,P and Q,R. So i just copy and pasted the coding and made some changes as below. But it is not working in it...Can you clarify where am i going wrong...

Option Explicit

Private Sub Worksheet_Change(ByVal Target As Range)
    Dim isect As Range

    If Target.Cells.Count > 1 Then Exit Sub

    On Error GoTo ResetApplication
    Application.EnableEvents = False

    Set isect = Intersect(Target, Range("O3:O20"))

    If Not isect Is Nothing Then
        If Target <> "" Then
            Range("Q" & Target.Row) = Target * 60
        Else
            Range("Q" & Target.Row) = ""
        End If
    End If

ResetApplication:
    Err.Clear
    On Error GoTo 0
    Application.EnableEvents = True
    Set isect = Nothing

End Sub