How to make count down timer for Time?

I am not sure I understand what it is you want, but as no one else has answered I will have a go. Does this help at all? DateTime Date1 = DateTime.Now.AddMinutes(60); DateTime Date2 = DateTime.Now; TimeSpan diff1 = Date1.Substract(Date2); //this is the time difference between the two datetimes textBox1.text = diff1.ToString();