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'System & API - How to open the Date and Time Properties Dialog (in two ways)
'Method 1:

Sub OpenDateTimePropertiesDialog()
    Call Shell("Control.exe Date/Time", vbNormalFocus)
End Sub
 
'Method 2:

Sub OpenDateTimePropertiesDialog()
    Call Shell("rundll32.exe shell32.dll,Control_RunDLL timedate.cpl,,0", vbNormalFocus)
End Sub