date time format in VB and C#

Visual basic
Module DateToStringExample
Public Sub Main()
Dim dateValue As Date = #6/15/2008 9:15:07PM#
' Create an array of standard format strings.
Dim standardFmts() As String = {"d", "D", "f", "F", "g", "G", _
"m", "o", "R", "s", "t", "T", _
"u", "U", "y"}
' Output date and time using each standard format string.
For Each standardFmt As String In standardFmts
Console.WriteLine("{0}: {1}", standardFmt, _
dateValue.ToString(standardFmt))
Next
Console.WriteLine()

' Create an array of some custom format strings.
Dim customFmts() As String = {"h:mm:ss.ff t", "d MMM yyyy", "HH:mm:ss.f", _
"dd MMM HH:mm:ss", "\Mon\t\h\: M", "HH:mm:ss.ffffzzz" }
' Output date and time using each custom format string.
For Each customFmt As String In customFmts
Console.WriteLine("'{0}': {1}", customFmt, _
dateValue.ToString(customFmt))
Next
End Sub
End Module
' This example displays the following output to the console:
' d: 6/15/2008
' D: Sunday, June 15, 2008
' f: Sunday, June 15, 2008 9:15 PM
' F: Sunday, June 15, 2008 9:15:07 PM
' g: 6/15/2008 9:15 PM
' G: 6/15/2008 9:15:07 PM
' m: June 15
' o: 2008-06-15T21:15:07.0000000
' R: Sun, 15 Jun 2008 21:15:07 GMT
' s: 2008-06-15T21:15:07
' t: 9:15 PM
' T: 9:15:07 PM
' u: 2008-06-15 21:15:07Z
' U: Monday, June 16, 2008 4:15:07 AM
' y: June, 2008
'
' 'h:mm:ss.ff t': 9:15:07.00 P
' 'd MMM yyyy': 15 Jun 2008
' 'HH:mm:ss.f': 21:15:07.0
' 'dd MMM HH:mm:ss': 15 Jun 21:15:07
' '\Mon\t\h\: M': Month: 6
' 'HH:mm:ss.ffffzzz': 21:15:07.0000-07:00

C#
using System;

public class DateToStringExample
{
public static void Main()
{
DateTime dateValue = new DateTime(2008, 6, 15, 21, 15, 07);
// Create an array of standard format strings.
string[] standardFmts = {"d", "D", "f", "F", "g", "G", "m", "o",
"R", "s", "t", "T", "u", "U", "y"};
// Output date and time using each standard format string.
foreach (string standardFmt in standardFmts)
Console.WriteLine("{0}: {1}", standardFmt,
dateValue.ToString(standardFmt));
Console.WriteLine();

// Create an array of some custom format strings.
string[] customFmts = {"h:mm:ss.ff t", "d MMM yyyy", "HH:mm:ss.f",
"dd MMM HH:mm:ss", @"\Mon\t\h\: M", "HH:mm:ss.ffffzzz" };
// Output date and time using each custom format string.
foreach (string customFmt in customFmts)
Console.WriteLine("'{0}': {1}", customFmt,
dateValue.ToString(customFmt));
}
}
// This example displays the following output to the console:
// d: 6/15/2008
// D: Sunday, June 15, 2008
// f: Sunday, June 15, 2008 9:15 PM
// F: Sunday, June 15, 2008 9:15:07 PM
// g: 6/15/2008 9:15 PM
// G: 6/15/2008 9:15:07 PM
// m: June 15
// o: 2008-06-15T21:15:07.0000000
// R: Sun, 15 Jun 2008 21:15:07 GMT
// s: 2008-06-15T21:15:07
// t: 9:15 PM
// T: 9:15:07 PM
// u: 2008-06-15 21:15:07Z
// U: Monday, June 16, 2008 4:15:07 AM
// y: June, 2008
//
// 'h:mm:ss.ff t': 9:15:07.00 P
// 'd MMM yyyy': 15 Jun 2008
// 'HH:mm:ss.f': 21:15:07.0
// 'dd MMM HH:mm:ss': 15 Jun 21:15:07
// '\Mon\t\h\: M': Month: 6
// 'HH:mm:ss.ffffzzz': 21:15:07.0000-07:00