Get largest possible value of DateTime in CSharp

using System;/*from  w w w  . j  a va2 s .com*/
public class MainClass{
  public static void Main(String[] argv){  

    long numberOfTicks = Int64.MaxValue;
    DateTime validDate;
    
    if (numberOfTicks >= DateTime.MinValue.Ticks &&
       numberOfTicks <= DateTime.MaxValue.Ticks) 
       validDate = new DateTime(numberOfTicks);
    else if (numberOfTicks < DateTime.MinValue.Ticks) 
       System.Console.WriteLine("{0:N0} is less than {1:N0} ticks.", 
                         numberOfTicks, 
                         DateTime.MinValue.Ticks);      
    else
       System.Console.WriteLine("{0:N0} is greater than {1:N0} ticks.", 
                         numberOfTicks,
                         DateTime.MaxValue.Ticks);
  }
}