Block access to MS access at night time with error message

Here is the question: How to block access to MS access at night time with an error message?
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SSupremeAuthor Commented:
Surely, it is for single .mdb file, not for whole application.
Depending on how secure you want this to be...
A simple method:
This code in a form, set as the default form for opening.
One textbox on the form [text0] set to =time()
Or simply test against the time component of Now()

Can be bypassed using shift key
Private Sub Form_Load()
If Me.Text0 < #5:00:00 PM# And Me.Text0 > #6:00:00 AM# Then
    DoCmd.OpenForm ("myNormalOpeningFormName")
    DoCmd.Close acForm, Me.Name, acSaveNo

    If MsgBox("It's dark outside" & vbCr & "Closing App", , "Can't work in the dark!") = vbOK Then
    DoCmd.Close acForm, Me.Name, acSaveNo
    End If

End If

End Sub

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SSupremeAuthor Commented:
Not exactly what I am looking for.
I think it should be in module.
Like this one I already have:
Function IsLoaded(ByVal strFormName As String) As Integer
    Const conObjStateClosed = 0
    Const conDesignView = 0
    If SysCmd(acSysCmdGetObjectState, acForm, strFormName) <> conObjStateClosed Then
        If Forms(strFormName).CurrentView <> conDesignView Then
            IsLoaded = True
        End If
    End If
End Function

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SSupremeAuthor Commented:
Actually, it is possible solution.
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