NET DateTime Formats | C# Online Compiler

NET DateTime Formats by Plutonix

Imports System
Imports System.Globalization
Imports System.Collections.Generic
				
Public Module Module1
	Public Sub Main()
	    Dim fmtList As New List(Of String)    ' dupe filter
        Dim n As Integer = 1

		Dim dtRT As DateTime = DateTime.Now
        Dim strRT As String
        Dim bRT As Boolean

        ' French: "fr-FR"; German: "de-DE" etc
        ' Spain: "es-ES", Croatia "hr-HR", Czech "cs-CZ"
		' Canadian "en-CA"; Finnish "fi-FI"; Turkey tr-TR
		Dim thisCult As New CultureInfo("it-IT")
        Dim dtInfo = DateTimeFormatInfo.GetInstance(thisCult)

		
		console.WriteLine("All DateTime Formats for {0}:",thisCult.DisplayName)
        For Each fmt As String In dtInfo.GetAllDateTimePatterns()
            ' only print unique ones
		    If fmtList.Contains(fmt) = False Then
			
				fmtList.Add(fmt)
			
							
				' Roundtrip test:
				'   Get string name in this culture too for Month Names
				' or Finnish 'heinäkuuta' wont match 'July'
				strRT = dtRT.ToString(fmt, thisCult)
			
				' use the most restrictive test
                bRT = DateTime.TryParseExact(strRT, fmt, thisCult, DateTimeStyles.None, dtRT)
				                
				Console.WriteLine("{0} {1} (Parse from: {2})", n.ToString("000"), fmt.PadRight(42), bRT.ToString)
                n += 1
            End If
        Next
		

	End Sub
End Module

​x
 
Imports System
Imports System.Globalization
Imports System.Collections.Generic
                
Public Module Module1
    Public Sub Main()
        Dim fmtList As New List(Of String)    ' dupe filter
        Dim n As Integer = 1
​
        Dim dtRT As DateTime = DateTime.Now
        Dim strRT As String
        Dim bRT As Boolean
​
        ' French: "fr-FR"; German: "de-DE" etc
        ' Spain: "es-ES", Croatia "hr-HR", Czech "cs-CZ"
        ' Canadian "en-CA"; Finnish "fi-FI"; Turkey tr-TR
        Dim thisCult As New CultureInfo("it-IT")
        Dim dtInfo = DateTimeFormatInfo.GetInstance(thisCult)
​
        
        console.WriteLine("All DateTime Formats for {0}:",thisCult.DisplayName)
        For Each fmt As String In dtInfo.GetAllDateTimePatterns()
            ' only print unique ones
            If fmtList.Contains(fmt) = False Then
            
                fmtList.Add(fmt)
            
                            
                ' Roundtrip test:
                '   Get string name in this culture too for Month Names
                ' or Finnish 'heinäkuuta' wont match 'July'
                strRT = dtRT.ToString(fmt, thisCult)
            
                ' use the most restrictive test
                bRT = DateTime.TryParseExact(strRT, fmt, thisCult, DateTimeStyles.None, dtRT)
                                
                Console.WriteLine("{0} {1} (Parse from: {2})", n.ToString("000"), fmt.PadRight(42), bRT.ToString)
                n += 1
            End If
        Next
        
​
    End Sub
End Module

All DateTime Formats for Italian (Italy):
001 dd/MM/yyyy                                 (Parse from: True)
002 dd/MMM/yyyy                                (Parse from: True)
003 dd/MM/yy                                   (Parse from: True)
004 dd.M.yy                                    (Parse from: True)
005 d/M/yy                                     (Parse from: True)
006 dddd d MMMM yyyy                           (Parse from: True)
007 d-MMM-yy                                   (Parse from: True)
008 d MMMM yyyy                                (Parse from: True)
009 dddd d MMMM yyyy HH:mm                     (Parse from: True)
010 d-MMM-yy HH:mm                             (Parse from: True)
011 d MMMM yyyy HH:mm                          (Parse from: True)
012 dddd d MMMM yyyy HH:mm:ss                  (Parse from: True)
013 d-MMM-yy HH:mm:ss                          (Parse from: True)
014 d MMMM yyyy HH:mm:ss                       (Parse from: True)
015 dd/MM/yyyy HH:mm                           (Parse from: True)
016 dd/MMM/yyyy HH:mm                          (Parse from: True)
017 dd/MM/yy HH:mm                             (Parse from: True)
018 dd.M.yy HH:mm                              (Parse from: True)
019 d/M/yy HH:mm                               (Parse from: True)
020 dd/MM/yyyy HH:mm:ss                        (Parse from: True)
021 dd/MMM/yyyy HH:mm:ss                       (Parse from: True)
022 dd/MM/yy HH:mm:ss                          (Parse from: True)
023 dd.M.yy HH:mm:ss                           (Parse from: True)
024 d/M/yy HH:mm:ss                            (Parse from: True)
025 d MMMM                                     (Parse from: True)
026 yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK     (Parse from: True)
027 ddd, dd MMM yyyy HH':'mm':'ss 'GMT'        (Parse from: True)
028 yyyy'-'MM'-'dd'T'HH':'mm':'ss              (Parse from: True)
029 HH:mm                                      (Parse from: True)
030 HH:mm:ss                                   (Parse from: True)
031 yyyy'-'MM'-'dd HH':'mm':'ss'Z'             (Parse from: True)
032 MMMM yyyy                                  (Parse from: True)

Cached Result
Last Run:	5:31:50 am
Compile:	0.169s
Execute:	0s
Memory:	1.06Mb
CPU:	0.031s

View IL Code