what is the return value of datetimepicker at VB.NET . My date variable at SQL is datetime, and how does it synchronized with datetimepicker at my form?

Question

i'm getting issue with my code. what is the return value of datetimepicker at VB.NET . My date variable at  SQL is datetime,  and how does it synchronized with datetimepicker at my form?

here is the code

cmd.CommandText = "INSERT INTO PRODUCT(PRODUCT_ID, NAME, DATE_IN) VALUES ('" & Me.txtPRODUCT_ID.Text & "', '" & Me.txtNAME.Text & "', '" & _

                                Me.DateTimePicker1.Value.Date & "')"

thx in advance :)