datetimepicker จะเอา format ของเครื่อง server มาใช้ต้องทำไงครับผมทำเป็น windows app

Namespace My
    ' The following events are available for MyApplication:
    ' Startup: Raised when the application starts, before the startup form is created.
    ' Shutdown: Raised after all application forms are closed.  This event is not raised if the application terminates abnormally.
    ' UnhandledException: Raised if the application encounters an unhandled exception.
    ' StartupNextInstance: Raised when launching a single-instance application and the application is already active. 
    ' NetworkAvailabilityChanged: Raised when the network connection is connected or disconnected.
    Partial Friend Class MyApplication
        Private Sub MyApplication_Startup(ByVal sender As Object,
          ByVal e As Microsoft.VisualBasic.ApplicationServices.StartupEventArgs) Handles Me.Startup
            My.Application.ChangeCulture("th-TH")
        End Sub

    End Class
End Namespace