How To send Excel file to particular user at specific day and specific time

I am create one application that application one file send to user at specific time and specific day export sql data into excel ,sending email that functions working fine but problems is that it cannot execute particular time and particular day I am paste here my code please help me out

private void Form1_Load(object sender, EventArgs e)
        {

            if ((DateTime.Now.DayOfWeek== DayOfWeek.Saturday) &&(DateTime.Now.Hour==19) &&(DateTime.Now.Minute==15))
            {
                exportsqldatatoexcle();

                emailattachment();


            }
}

<pre>public void exportsqldatatoexcle()
        {
            string con1 = "Data Source=ADMIN\\SQLEXPRESS;Initial Catalog=PhysioCure; Integrated Security=true";
            SqlConnection connection = new SqlConnection(con1);
            connection.Open();
            sda = new SqlDataAdapter("select PationName,RegistrationDate,ContactNo,Age,Sex,Chief_Complain,Investigation_Result,PastHistoryAny,Physical_Examination,Medications,Prognosis,Electro_Therapy,Neuro_Rehabilitation,Ortho_Rehabilitation,Cardio_Pulmonery_Rehabilitation,Sports_Rehabilitation from Physio_cureTable order by RegistrationDate desc", con1);
            dt = new DataTable();
            sda.Fill(dt);

            DataColumnCollection dccollection = dt.Columns;

            Microsoft.Office.Interop.Excel.ApplicationClass excelapp = new Microsoft.Office.Interop.Excel.ApplicationClass();

            excelapp.Application.Workbooks.Add(Type.Missing);


            for (int i = 1; i < dt.Rows.Count + 1; i++)
            {

                for (int j = 1; j < dt.Columns.Count + 1; j++)
                {
                    if (i == 1)
                    {
                        excelapp.Cells[i, j] = dccollection[j - 1].ToString();

                    }
                    else
                    {
                        excelapp.Cells[i, j] = dt.Rows[i - 1][j - 1].ToString();

                    }

                }

            }

            excelapp.ActiveWorkbook.SaveCopyAs("E:\\Winform n console\\PhysioCure\\PhysioCure\\Patient_Details.xls");
            excelapp.ActiveWorkbook.Saved = true;
            object m = Type.Missing;
            excelapp.ActiveWorkbook.Close(m, m, m);
            excelapp.Quit();
            connection.Close();
            MessageBox.Show("Detail file successfully create!");

        }

        private void emailattachment()
        {
            //try
            //{
                MailMessage mail = new MailMessage();
                SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
                mail.From = new MailAddress("my email id");
                mail.To.Add("my friend email id");
                mail.Subject = "Sending you Patient_Details File - 1";
                mail.Body = "Please Check Mail With Attachment dear..... ";

                System.Net.Mail.Attachment attachment;
                attachment = new Attachment("E:\\Winform n console\\PhysioCure\\PhysioCure\\Patient_Details.xls");
                mail.Attachments.Add(attachment);

                SmtpServer.Port = 587;
                SmtpServer.Credentials = new System.Net.NetworkCredential("my email id", "password");
                SmtpServer.EnableSsl = true;

                SmtpServer.Send(mail);

                MessageBox.Show("Details File send on your mail please check your mail");
            //}
            /*catch (Exception ex)
            {
                MessageBox.Show("Mail cannot send please contact developer!!");

            }*/


        }

Tags: ADO.NET, SQL Server 2005, SQL Server