Date and Time

Question

I want to save start  and  end time 

 

DateTime dt = DateTime.Now;

        DateTime dt1 = DateTime.Now;

        st = "insert into tbl_time(time_in,time_out) values('" + dt.ToString("hh:mm:ss") + "','" + dt1 + "')";

        int x = db.ExeQuery(st);

        if (x > 0)

        {

            Response.Write("Saved");

        }

        else

        {

            Response.Write("NOt Savd");

        }

    }