Pre-built date/time specifiers : DateTime Format : Date Time C# Examples

    
using  System;
using  System.Collections.Generic;
using  System.Globalization;
using  System.IO;
using  System.Text;
using  System.Security.Cryptography;

public  class  MainClass
{
        public  static  void  Main()
        {
                DateTime  dt1  =  new  DateTime(2004,  10,  9,  22,  47,  35,  259);
                DateTimeFormatInfo  di  =  new  DateTimeFormatInfo();
                for  (char  c  =  'a';  c  <=  'z';  c++)
                {
                        try
                        {
                                foreach  (string  s  in  di.GetAllDateTimePatterns(c))
                                {
                                        Console.WriteLine("'{0}':  {1}  -  {2}/{3}",  c,  s,
                                                dt1.ToString(c.ToString()),  dt1.ToString(s));
                                }
                                char  cUpper  =  Char.ToUpper(c);
                                foreach  (string  s  in  di.GetAllDateTimePatterns(cUpper))
                                {
                                        Console.WriteLine("'{0}':  {1}  -  {2}",  cUpper,  s,
                                                dt1.ToString(cUpper.ToString()),  dt1.ToString(s));
                                }
                        }
                        catch  (ArgumentException)
                        {
                                //  Ignore--specifier  not  found.
                        }
                }
        }
}
    
   
  
   

Output

'd': MM/dd/yyyy - 09/10/2004/10/09/2004
'D': dddd, dd MMMM yyyy - October 9, 2004
'f': dddd, dd MMMM yyyy HH:mm - October 9, 2004 10:47 PM/Saturday, 09 October 2004 22:47
'f': dddd, dd MMMM yyyy hh:mm tt - October 9, 2004 10:47 PM/Saturday, 09 October 2004 10:47 PM
'f': dddd, dd MMMM yyyy H:mm - October 9, 2004 10:47 PM/Saturday, 09 October 2004 22:47
'f': dddd, dd MMMM yyyy h:mm tt - October 9, 2004 10:47 PM/Saturday, 09 October 2004 10:47 PM
'F': dddd, dd MMMM yyyy HH:mm:ss - October 9, 2004 10:47:35 PM
'g': MM/dd/yyyy HH:mm - 09/10/2004 10:47 PM/10/09/2004 22:47
'g': MM/dd/yyyy hh:mm tt - 09/10/2004 10:47 PM/10/09/2004 10:47 PM
'g': MM/dd/yyyy H:mm - 09/10/2004 10:47 PM/10/09/2004 22:47
'g': MM/dd/yyyy h:mm tt - 09/10/2004 10:47 PM/10/09/2004 10:47 PM
'G': MM/dd/yyyy HH:mm:ss - 09/10/2004 10:47:35 PM
'm': MMMM dd - October 09/October 09
'M': MMMM dd - October 09
'o': yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK - 2004-10-09T22:47:35.2590000/2004-10-09T22:47:35.259000
0
'O': yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK - 2004-10-09T22:47:35.2590000
'r': ddd, dd MMM yyyy HH':'mm':'ss 'GMT' - Sat, 09 Oct 2004 22:47:35 GMT/Sat, 09 Oct 2004 22:47:35 G
MT
'R': ddd, dd MMM yyyy HH':'mm':'ss 'GMT' - Sat, 09 Oct 2004 22:47:35 GMT
's': yyyy'-'MM'-'dd'T'HH':'mm':'ss - 2004-10-09T22:47:35/2004-10-09T22:47:35
't': HH:mm - 10:47 PM/22:47
't': hh:mm tt - 10:47 PM/10:47 PM
't': H:mm - 10:47 PM/22:47
't': h:mm tt - 10:47 PM/10:47 PM
'T': HH:mm:ss - 10:47:35 PM
'u': yyyy'-'MM'-'dd HH':'mm':'ss'Z' - 2004-10-09 22:47:35Z/2004-10-09 22:47:35Z
'U': dddd, dd MMMM yyyy HH:mm:ss - October 10, 2004 5:47:35 AM
'y': yyyy MMMM - October, 2004/2004 October
'Y': yyyy MMMM - October, 2004