System.Globalization Namespace

---

Represents the Hijri calendar.

HijriCalendar Class Members

Show Inherited Members

Constructors Visibility Constructor Parameters public HijriCalendar ( )   Fields Visibility Name Type public static HijriEra Int32   Properties Visibility Name Value Type Accessibility public AlgorithmType CalendarAlgorithmType [ Get ] public Eras Int32 [ Get ] public HijriAdjustment Int32 [ Get , Set ] public MaxSupportedDateTime DateTime [ Get ] public MinSupportedDateTime DateTime [ Get ] public TwoDigitYearMax Int32 [ Get , Set ]   Methods Visibility Name Parameters Return Type public AddMonths ( DateTime time , Int32 months ) DateTime public AddYears ( DateTime time , Int32 years ) DateTime public GetDayOfMonth ( DateTime time ) Int32 public GetDayOfWeek ( DateTime time ) DayOfWeek public GetDayOfYear ( DateTime time ) Int32 public GetDaysInMonth ( Int32 year , Int32 month , Int32 era ) Int32 public GetDaysInYear ( Int32 year , Int32 era ) Int32 public GetEra ( DateTime time ) Int32 public GetLeapMonth ( Int32 year , Int32 era ) Int32 public GetMonth ( DateTime time ) Int32 public GetMonthsInYear ( Int32 year , Int32 era ) Int32 public GetYear ( DateTime time ) Int32 public IsLeapDay ( Int32 year , Int32 month , Int32 day , Int32 era ) Boolean public IsLeapMonth ( Int32 year , Int32 month , Int32 era ) Boolean public IsLeapYear ( Int32 year , Int32 era ) Boolean public ToDateTime ( Int32 year , Int32 month , Int32 day , Int32 hour , Int32 minute , Int32 second , Int32 millisecond , Int32 era ) DateTime public ToFourDigitYear ( Int32 year ) Int32

The Hijri calendar recognizes one era: A.H. ( Latin "Anno Hegirae", which means "the year of the migration," in reference to the migration of Muhammad from Mecca ).

In every 30-year cycle that ends with a year that is evenly divisible by 30, the 2nd, 5th, 7th, 10th, 13th, 16th, 18th, 21st, 24th, 26th, and 29th years are leap years. A common year has 354 days and a leap year has 355 days.

The Hijri calendar has 12 months with 29 to 30 days each:

GetMonth value	Month	Days in common years	Days in leap years
1	محرم ( Muharram )	30	30
2	صفر ( Safar )	29	29
3	‏ربيع الاول ( Rabi I )	30	30
4	‏ربيع الثاني ( Rabi II )	29	29
5	جمادى الاولى ( Jumada I )	30	30
6	جمادى الثانية ( Jumada II )	29	29
7	رجب ( Rajab )	30	30
8	شعبان ( Shaban )	29	29
9	رمضان ( Ramadan )	30	30
10	شوال ( Shawwal )	29	29
11	ذو القعدة ( Zulkadah )	30	30
12	ذو الحجة ( Zulhijjah )	29	30

Ramadan, the month of fasting in the Muslim world, officially starts and ends according to a decree that is based on the observation of the new moon; therefore,the number of days in Shaban and the number of days in Ramadan vary.

The date January 1, 2001 A.D. in the Gregorian calendar is roughly equivalent to the sixth day of Shawwal in the year 1421 A.H. in the Hijri calendar.

This implementation of the HijriCalendar class adjusts the calendar date by adding or subtracting a value from zero to two days to accommodate the variances in the start and the end of Ramadan and to accommodate the date difference between countries. That value is derived from the settings in Regional and Language Options ( or Regional Options or Regional Settings ) in Control Panel in Windows and is stored in the registry value HKEY_CURRENT_USER\Control Panel\International\AddHijriDate. However, that information can change during the life of the AppDomain. The HijriCalendar class does not detect changes in the system settings automatically.

Calendar

Books and more ...

Custom Search

Suggested Reading

Need a break ?