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HebrewCalendar Class

Represents the Hebrew calendar.

For a list of all members of this type, see HebrewCalendar Members.


[Visual Basic]
Public Class HebrewCalendar
   Inherits Calendar
public class HebrewCalendar : Calendar
public __gc class HebrewCalendar : public Calendar
class HebrewCalendar extends Calendar

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.


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 only the Hebrew years 5343 to 6000 (1582 to 2240 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 supports a set of calendars. The Calendar property returns the default calendar for the culture, and the OptionalCalendars property returns an array containing all the calendars supported by the culture. To change the calendar used by a CultureInfo, set the Calendar property of CultureInfo.DateTimeFormat to a new Calendar.


Namespace: System.Globalization

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Assembly: Mscorlib (in Mscorlib.dll)

See Also

HebrewCalendar Members | System.Globalization Namespace | Calendar | Calendar | OptionalCalendars