       private void timer1_Tick(object sender, EventArgs e)
        {
            System.DateTime time1;
            time1 = DateTime.Now;
            int h = time1.Hour;
            int m = time1.Minute;
            int s = time1.Second;
            this.Text = "Time is:" + h.ToString() + ":" + m.ToString() + ":" + s.ToString();
        }
