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HebrewCalendar Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Represents the Hebrew calendar.

Inheritance Hierarchy

System.Object
  System.Globalization.Calendar
    System.Globalization.HebrewCalendar

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

Syntax

'Declaration
<ComVisibleAttribute(True)> _
Public Class HebrewCalendar _
    Inherits Calendar
[ComVisibleAttribute(true)]
public class HebrewCalendar : Calendar

The HebrewCalendar type exposes the following members.

Constructors

  Name Description
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 HebrewCalendar Initializes a new instance of the HebrewCalendar class.

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Properties

  Name Description
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 Eras Gets the list of eras in the HebrewCalendar. (Overrides Calendar.Eras.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 IsReadOnly Gets a value indicating whether this Calendar object is read-only. (Inherited from Calendar.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 MaxSupportedDateTime Gets the latest date and time supported by the HebrewCalendar type. (Overrides Calendar.MaxSupportedDateTime.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 MinSupportedDateTime Gets the earliest date and time supported by the HebrewCalendar type. (Overrides Calendar.MinSupportedDateTime.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 TwoDigitYearMax Gets or sets the last year of a 100-year range that can be represented by a 2-digit year. (Overrides Calendar.TwoDigitYearMax.)

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Methods

  Name Description
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddDays Returns a DateTime that is the specified number of days away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddHours Returns a DateTime that is the specified number of hours away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddMilliseconds Returns a DateTime that is the specified number of milliseconds away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddMinutes Returns a DateTime that is the specified number of minutes away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddMonths Returns a DateTime that is the specified number of months away from the specified DateTime. (Overrides Calendar.AddMonths(DateTime, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddSeconds Returns a DateTime that is the specified number of seconds away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddWeeks Returns a DateTime that is the specified number of weeks away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddYears Returns a DateTime that is the specified number of years away from the specified DateTime. (Overrides Calendar.AddYears(DateTime, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDayOfMonth Returns the day of the month in the specified DateTime. (Overrides Calendar.GetDayOfMonth(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDayOfWeek Returns the day of the week in the specified DateTime. (Overrides Calendar.GetDayOfWeek(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDayOfYear Returns the day of the year in the specified DateTime. (Overrides Calendar.GetDayOfYear(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDaysInMonth(Int32, Int32) Returns the number of days in the specified month and year of the current era. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDaysInMonth(Int32, Int32, Int32) Returns the number of days in the specified month in the specified year in the specified era. (Overrides Calendar.GetDaysInMonth(Int32, Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDaysInYear(Int32) Returns the number of days in the specified year of the current era. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDaysInYear(Int32, Int32) Returns the number of days in the specified year in the specified era. (Overrides Calendar.GetDaysInYear(Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetEra Returns the era of a specified DateTime value. (Overrides Calendar.GetEra(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetHour Returns the hours value in the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetLeapMonth Calculates the leap month for a specified year and era. (Overrides Calendar.GetLeapMonth(Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMilliseconds Returns the milliseconds value in the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMinute Returns the minutes value in the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMonth Returns the month in the specified DateTime. (Overrides Calendar.GetMonth(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMonthsInYear(Int32) Returns the number of months in the specified year in the current era. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMonthsInYear(Int32, Int32) Returns the number of months in the specified year in the specified era. (Overrides Calendar.GetMonthsInYear(Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetSecond Returns the seconds value in the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetType Gets the Type of the current instance. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetWeekOfYear Returns the week of the year that includes the date in the specified DateTime value. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetYear Returns the year in the specified DateTime value. (Overrides Calendar.GetYear(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapDay(Int32, Int32, Int32) Determines whether the specified date in the current era is a leap day. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapDay(Int32, Int32, Int32, Int32) Determines whether the specified date in the specified era is a leap day. (Overrides Calendar.IsLeapDay(Int32, Int32, Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapMonth(Int32, Int32) Determines whether the specified month in the specified year in the current era is a leap month. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapMonth(Int32, Int32, Int32) Determines whether the specified month in the specified year in the specified era is a leap month. (Overrides Calendar.IsLeapMonth(Int32, Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapYear(Int32) Determines whether the specified year in the current era is a leap year. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapYear(Int32, Int32) Determines whether the specified year in the specified era is a leap year. (Overrides Calendar.IsLeapYear(Int32, Int32).)
Protected methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32) Returns a DateTime that is set to the specified date and time in the current era. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Int32) Returns a DateTime that is set to the specified date and time in the specified era. (Overrides Calendar.ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ToFourDigitYear Converts the specified year to a 4-digit year by using the TwoDigitYearMax property to determine the appropriate century. (Overrides Calendar.ToFourDigitYear(Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ToString Returns a string that represents the current object. (Inherited from Object.)

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Remarks

The Hebrew calendar recognizes two eras: B.C.E. (before the common era) and A.M. (Latin "Anno Mundi", which means "the year of the world"). This implementation of the HebrewCalendar class recognizes only the current era (A.M.) and the Hebrew years 5343 to 5999 (1583 to 2239 in the Gregorian calendar).

In every 19-year cycle that ends with a year that is evenly divisible by 19, the 3rd, 6th, 8th, 11th, 14th, 17th, and 19th years are leap years. A common year can have from 353 to 355 days, depending on the placement of Jewish holidays. A leap year can have from 383 to 385 days.

The Hebrew calendar has 12 months during common years and 13 months during leap years:

GetMonth value (common year)

GetMonth value (leap year)

Month

Days in common years

Days in leap years

1

1

תשרי (Tishrei)

30

30

2

2

חשון (Cheshvan)

29/30

29/30

3

3

כסלו (Kislev)

29/30

29/30

4

4

טבת (Tevet)

29

29

5

5

שבט (Shevat)

30

30

6

-

אדר (Adar)

29

-

-

6

אדר א (Adar Alef)

-

30

-

7

אדר ב (Adar Beit)

-

29

7

8

ניסן (Nissan)

30

30

8

9

אייר (Iyar)

29

29

9

10

סיון (Sivan)

30

30

10

11

תמוז (Tamuz)

29

29

11

12

אב (Av)

30

30

12

13

אלול (Elul)

29

29

The days in Cheshvan and Kislev vary depending on the placement of Jewish holidays. During leap years, Adar is replaced by Adar Alef with 30 days and Adar Beit with 29 days. Adar Beit is considered the leap month. The last day of Adar Alef and all the days in Adar Beit are considered leap days.

The date January 1, 2001 A.D. in the Gregorian calendar is equivalent to the sixth day of Tevet in the year 5761 A.M. in the Hebrew calendar.

Each CultureInfo object supports a set of calendars. The CultureInfo.Calendar property returns the default calendar for the culture, and the CultureInfo.OptionalCalendars property returns an array containing all the calendars supported by the culture. To change the calendar used by a CultureInfo object, the application can set the Calendar property of CultureInfo.DateTimeFormat to a new Calendar object if the new calendar is one of the culture's optional calendars. The following example shows how to change the calendar for the he-IL culture to the Hebrew calendar.

' Change the calendar used by a he-IL CultureInfo object from Gregorian to Hebrew. 
Dim hebrewCulture As New CultureInfo("he-IL")
Dim originalCalendar As Calendar = hebrewCulture.Calendar
Dim message As String = Nothing

' Confirm that the default calendar is not the Hebrew calendar.
If originalCalendar.ToString <> "System.Globalization.HebrewCalendar" Then
   ' Check whether the culture supports the Hebrew calendar.
   Dim supported As Boolean = False
   For Each supportedCal As Calendar In hebrewCulture.OptionalCalendars
      If supportedCal.ToString = "System.Globalization.HebrewCalendar" Then
         supported = True            
         hebrewCulture.DateTimeFormat.Calendar = supportedCal
         message = String.Format("Changed the current calendar for the {0} culture from {1} to {2}.", _
                                 hebrewCulture.ToString(), _
                                 originalCalendar.ToString.Replace("System.Globalization.", ""), _
                                 supportedCal.ToString.Replace("System.Globalization.", ""))                                 
         Exit For
      End If
      If Not supported Then message = "The Hebrew calendar is not supported."
   Next        
Else
   message = String.Format("Hebrew is the default calendar for the {0} culture.", _
                           hebrewCulture.ToString())
End If
outputBlock.Text += message + vbCrLf
' The example displays the following output:
'   Changed the current calendar for the he-IL culture from GregorianCalendar to HebrewCalendar.
// Change the calendar used by a he-IL CultureInfo object from Gregorian to Hebrew. 
CultureInfo hebrewCulture = new CultureInfo("he-IL");
Calendar originalCalendar = hebrewCulture.Calendar;
string message = null;

// Confirm that the default calendar is not the Hebrew calendar.
if (originalCalendar.ToString() != "System.Globalization.HebrewCalendar")
{
   // Check whether the culture supports the Hebrew calendar.
   bool supported = false;
   foreach (Calendar supportedCal in hebrewCulture.OptionalCalendars)
   {
      if (supportedCal.ToString() == "System.Globalization.HebrewCalendar")
      {
         supported = true;            
         hebrewCulture.DateTimeFormat.Calendar = supportedCal;
         message = String.Format("Changed the current calendar for the {0} culture from {1} to {2}.",
                                 hebrewCulture.ToString(),
                                 originalCalendar.ToString().Replace("System.Globalization.", ""),
                                 supportedCal.ToString().Replace("System.Globalization.", ""));                                 
         break;
      }
   }
   if (! supported) message = "The Hebrew calendar is not supported.";
}       
else
{
   message = String.Format("Hebrew is the default calendar for the {0} culture.",
                           hebrewCulture.ToString());
}
outputBlock.Text += message + "\n";
// The example displays the following output:
//   Changed the current calendar for the he-IL culture from GregorianCalendar to HebrewCalendar.

Platform Notes

Silverlight for Windows Phone Silverlight for Windows Phone

This type is present but is not supported on Windows Phone.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.