Format DateTimeOffset with standard format in CSharp

/* ww  w  . ja  va  2  s  .c  om*/
using System;
public class MainClass{
  public static void Main(String[] argv){  
    DateTimeOffset outputDate = new DateTimeOffset(2014, 10, 31, 21, 0, 0, 
                                         new TimeSpan(-8, 0, 0));
    string specifier; 
    
    specifier = "d";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "D";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "t";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "T";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "f";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "F";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "g";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "G";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "M";           // 'm' is identical 
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "R";           // 'r' is identical 
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "s";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "u";
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier)); 
    
    specifier = "Y";         // 'y' is identical 
    Console.WriteLine("{0}: {1}", specifier, outputDate.ToString(specifier));

  }
}