DateTime Comparison in .NET:

DateTime t1 = DateTime.Now;

DateTime t2 = Convert.ToDateTime("11:00:00 AM");

int i = DateTime.Compare(t1,t2);

//if t1 is less than t2 then result is Less than zero

//if t1 equals t2 then result is Zero

//if t1 is greater than t2 then result isGreater zero