.NET Framework Standard Library Annotated Reference, Volume 1: Base Class Library and Extended Numerics Library

Example

using System;
using System.Globalization;
namespace Samples
{
  public class DateTimeFormatInfoSample
  {
    public static void Main()
    {
      DateTime d = DateTime.Now;
      DateTimeFormatInfo i =
          new CultureInfo("fr-FR").DateTimeFormat;
      string[] f = i.GetAllDateTimePatterns();
      foreach(string s in f)
        Console.WriteLine("ToString(\"{0}\") yields: {1}",
                          s, d.ToString(s, i));
      i = new CultureInfo("en-AU").DateTimeFormat;
      f = i.GetAllDateTimePatterns();
      foreach(string s in f)
        Console.WriteLine("ToString(\"{0}\") yields: {1}",
                          s, d.ToString(s, i));
    }
  }
}

The output is

 ToString("dd/MM/yyyy") yields: 10/06/2003 ToString("dd/MM/yy") yields: 10/06/03 ToString("dd.MM.yy") yields: 10.06.03 ToString("dd-MM-yy") yields: 10-06-03 ToString("yyyy-MM-dd") yields: 2003-06-10 ...