greater condition between two Time

Question

i want if 9:00 > 8:00 then result in third column will be 1 .

DateTime dt1 = Convert.ToDateTime(txtTime.Text.Trim()).Date;

DateTime dt2 = Convert.ToDateTime(txtLTime.Text.Trim()).Date;

if (int.Parse(txtLTime.Text) > int.Parse(txtTime.Text))

{

txtLate.Text = "1";

}

 

i tried above code but not working