How to save DateTime format in ASP.NET MVC .NET CORE

Question

Hi guys,, I'm try to save data in sql server with DateTime format, I'm get error like this 

 

SqlException: The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value. The statement has been terminated.

 

in the Controller I have been try to + Convert.ToDateTime(pasienModel.Tanggal_Lahir) + but not working. Any help could be appreciated.

 

 

this is the PasienModel.cs

[DataType(DataType.DateTime)]
[DisplayFormat(DataFormatString = "{0:yyyy-MM-dd}", ApplyFormatInEditMode = true, NullDisplayText = "NULL")]
public Nullable<System.DateTime> Tanggal_Lahir { get; set; }

this is the PasienController.cs

[HttpGet]
public IActionResult TambahData()
{
    return View();
}
public IActionResult TambahData(PasienModel pasienModel)
{
    if (ModelState.IsValid)
    {
        using (SqlConnection con = new SqlConnection(_configuration.GetConnectionString("db_klinik")))
        {
            using (SqlCommand cmd = new SqlCommand("Insert Into Pasien (Nama_Pasien,Alamat,Jenis_Kelamin,Tanggal_Lahir,Status) Values ('" + pasienModel.Nama_Pasien + "','" + pasienModel.Alamat + "','" + pasienModel.Jenis_Kelamin + "','" + Convert.ToDateTime(pasienModel.Tanggal_Lahir) + "','" + pasienModel.Status + "')", con))
            {
                con.Open();
                cmd.Connection = con;
                cmd.CommandType = CommandType.Text;
                cmd.ExecuteNonQuery();
                return RedirectToAction("Index", "Dokter");

            }
        }
    }
    else
    {
        return View(pasienModel);
    }
}

this is the View TambahData.cshtml

<div class="form-group row">
     <label asp-for="Tanggal_Lahir" class="col-sm-2 col-form-label">Tanggal Lahir</label>
         <div class="col-sm-10">
               @Html.TextBoxFor(model => model.Tanggal_Lahir, new { @class = "form-control datepicker", placeholder = "Enter Date", id = "Date", autocomplete = "off" })
              <span asp-validation-for="Tanggal_Lahir" class="text-danger"></span>
         </div>
</div>

this is the Javascript to show calender

<script src="~/plugins/jquery/jquery.min.js"></script>
   <link href="~/JqueryCalender/jquery-ui-1.12.1.custom/jquery-ui.min.css" rel="stylesheet" />
   <script src="~/plugins/moment/moment.min.js"></script>
   <script type="text/javascript">
       $(document).ready(function () {
           $('.datepicker').datepicker({
               dateFormat: "yy/mm/dd"
           });
       });
</script>