conversion failed when converting date and/or time from character string

private void bindingNavigatorAddNewItem_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {

                FileInfo fi = new FileInfo(openFileDialog1.FileName);
                byte[] data = new byte[fi.Length];
                DateTime dt = fi.CreationTime;

                FileStream fs = fi.Open(FileMode.Open, FileAccess.Read, FileShare.Read);
                fs.Position = 0;
                fs.Read(data, 0, Convert.ToInt32(fi.Length));
                SqlConnection conn = new SqlConnection(string.Format("Data Source=SELVA-T;Initial Catalog=textile;Integrated Security=True"
                        , ServerName
                        , DatabaseName)
                        );

                try
                {
                    conn.Open();
                    SqlCommand cmd = new SqlCommand("INSERT INTO bill([Bill Name],[Date & Time],[Data]) "
                        + string.Format("values( '{0}','{1}',@Data )"
                            , fi.Name
                            , dt.ToString()
                            )
                            , conn);
                    SqlParameter pdata = new SqlParameter("@Data", SqlDbType.Image);
                    pdata.Direction = ParameterDirection.Input;
                    pdata.SqlValue = data;
                    cmd.Parameters.Add(pdata);
                    cmd.ExecuteNonQuery();
                    long si;
                    si = fi.Length / 1024;
                    MessageBox.Show("u inserted the file size of " + si.ToString() + "kb");
                    textileDataSet3.Tables[0].Rows.Add(fi.Name, dt, data);
//getting error in this underline 
                    textileDataSet3.Tables[0].AcceptChanges();
                    conn.Close();
                }
                catch (Exception a)
                {
                    MessageBox.Show(a.Message);
                }
            }
        }