Affichage des differents formats des dates et heures

using System;  
 
public class FormatDateHeure
{
  public static void Main()
  {
     // Obtenir la date actuelle
    DateTime maintenant = DateTime.Now; 
 
    Console.WriteLine("d format: {0:d}", maintenant);
    Console.WriteLine("D format: {0:D}", maintenant); 
 
    Console.WriteLine("t format: {0:t}", maintenant);
    Console.WriteLine("T format: {0:T}", maintenant); 
 
    Console.WriteLine("f format: {0:f}", maintenant);
    Console.WriteLine("F format: {0:F}", maintenant); 
 
    Console.WriteLine("g format: {0:g}", maintenant);
    Console.WriteLine("G format: {0:G}", maintenant); 
 
    Console.WriteLine("m format: {0:m}", maintenant);
    Console.WriteLine("M format: {0:M}", maintenant); 
 
    Console.WriteLine("r format: {0:r}", maintenant);
    Console.WriteLine("R format: {0:R}", maintenant); 
 
    Console.WriteLine("s format: {0:s}", maintenant); 
 
    Console.WriteLine("u format: {0:u}", maintenant);
    Console.WriteLine("U format: {0:U}", maintenant); 
 
    Console.WriteLine("y format: {0:y}", maintenant);
    Console.WriteLine("Y format: {0:Y}", maintenant);
  }
}