Record Date in Sql Server 2005 while submitting registration form

After user fills the required information how do I capture the date of filling the form on button click?

My insert query is:

con.Open();
SqlCommand command = new SqlCommand("insert into data (UserID,Name,Email,Country,Date,Multiselect,Gender,Pincode)values('" + txtuserid.Text + "','" + txtname.Text + "','" + txtemail.Text + "','" + ddlcountry.SelectedItem.Text + "','" + s1 + "','" + lbmultiselect.Text + "','" + rblgender.Text + "','" + txtpincode.Text + "')", con);
command.ExecuteNonQuery();