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PersianCalendar.MinSupportedDateTime Property

Gets the earliest date and time supported by the PersianCalendar class.

Namespace:  System.Globalization
Assembly:  mscorlib (in mscorlib.dll)

'Declaration
Public Overrides ReadOnly Property MinSupportedDateTime As DateTime

Property Value

Type: System.DateTime
The earliest date and time supported by the PersianCalendar class. See the Remarks section for more information.

Starting with the .NET Framework 4.6 RC, the value of the MinSupportedDateTime property is equivalent to the first moment of March 22, 622 C.E. in the Gregorian calendar. In previous versions of the ,NET Framework, it is equivalent to the first moment of March 21, 622 C.E. in the Gregorian calendar. For more information, see "The PersianCalendar class and .NET Framework versions" in the PersianCalendar topic.

622 C.E. is equivalent to the year 0001 in the Persian calendar.

The following code example demonstrates the use of the MinSupportedDateTime property.

Imports System.Globalization

Class Sample
    Public Shared Sub Main()
        '-------------------------------------------------------------------------------- 
        ' Get today's date. 
        '-------------------------------------------------------------------------------- 
        Dim jc As New PersianCalendar()
        Dim thisDate As Date = Date.Now

        '-------------------------------------------------------------------------------- 
        ' Properties 
        '--------------------------------------------------------------------------------
        Console.WriteLine(vbCrLf & _
                          "........... Selected Properties ....................." & vbCrLf)
        Console.Write("Eras:")
        Dim era As Integer 
        For Each era In jc.Eras
            Console.WriteLine(" era = {0}", era)
        Next era
        '--------------------------------------------------------------------------------
        Console.WriteLine("TwoDigitYearMax = {0}", jc.TwoDigitYearMax)
        '-------------------------------------------------------------------------------- 
        ' Methods 
        '--------------------------------------------------------------------------------
        Console.WriteLine(vbCrLf & _
                          "............ Selected Methods ......................." & vbCrLf)

        '--------------------------------------------------------------------------------
        Console.WriteLine("GetDayOfYear: day = {0}", jc.GetDayOfYear(thisDate))
        '--------------------------------------------------------------------------------

        Console.WriteLine("GetDaysInMonth: days = {0}", _
                           jc.GetDaysInMonth(thisDate.Year, _
                                             thisDate.Month, _
                                             PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("GetDaysInYear: days = {0}", _
                          jc.GetDaysInYear(thisDate.Year, PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("GetLeapMonth: leap month (if any) = {0}", _
                           jc.GetLeapMonth(thisDate.Year, PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("GetMonthsInYear: months in a year = {0}", _
                           jc.GetMonthsInYear(thisDate.Year, PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("IsLeapDay: This is a leap day = {0}", _
                           jc.IsLeapDay(thisDate.Year, _
                                        thisDate.Month, thisDate.Day, _
                                        PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("IsLeapMonth: This is a leap month = {0}", _
                           jc.IsLeapMonth(thisDate.Year, _
                                          thisDate.Month, _
                                          PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("IsLeapYear: 1370 is a leap year = {0}", _
                           jc.IsLeapYear(1370, PersianCalendar.PersianEra))
        '-------------------------------------------------------------------------------- 

        ' Get the 4-digit year for a year whose last two digits are 99. The 4-digit year  
        ' depends on the current value of the TwoDigitYearMax property.

        Console.WriteLine("ToFourDigitYear:")
        Console.WriteLine("  If TwoDigitYearMax = {0}, ToFourDigitYear(99) = {1}", _
                          jc.TwoDigitYearMax, jc.ToFourDigitYear(99))
        jc.TwoDigitYearMax = thisDate.Year
        Console.WriteLine("  If TwoDigitYearMax = {0}, ToFourDigitYear(99) = {1}", _
                          jc.TwoDigitYearMax, jc.ToFourDigitYear(99))
    End Sub 
End Class  
' The example displays output like the following:  
'       ........... Seleted Properties ..................... 
'        
'       Eras: era = 1 
'        
'       TwoDigitYearMax = 99 
'        
'       ............ Selected Methods ....................... 
'        
'       GetDayOfYear: day = 1 
'       GetDaysInMonth: days = 31 
'       GetDaysInYear: days = 365 
'       GetLeapMonth: leap month (if any) = 0 
'       GetMonthsInYear: months in a year = 12 
'       IsLeapDay: This is a leap day = False 
'       IsLeapMonth: This is a leap month = False 
'       IsLeapYear: 1370 is a leap year = True 
'       ToFourDigitYear: 
'         If TwoDigitYearMax = 99, ToFourDigitYear(99) = 99 
'         If TwoDigitYearMax = 2012, ToFourDigitYear(99) = 1999

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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