HijriCalendar Class

Definition

Namespace:

System.Globalization

Assembly:

System.Runtime.dll

Source:

HijriCalendar.cs

Represents the Hijri calendar.

public ref class HijriCalendar : System::Globalization::Calendar

public class HijriCalendar : System.Globalization.Calendar

type HijriCalendar = class
    inherit Calendar

Public Class HijriCalendar
Inherits Calendar

Inheritance

Object

Calendar

HijriCalendar

Remarks

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 (PBUH) from Mecca).

Note

For information about using the HijriCalendar class and the other calendar classes in the .NET Framework, see Working with Calendars.

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/regions. That value is stored in the HijriAdjustment property. If HijriAdjustment is not set explicitly, it derives its value from the settings in the regional and language options portion of Control Panel 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.

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, the application should set the Calendar property of CultureInfo.DateTimeFormat to a new Calendar.

Constructors

HijriCalendar()

Initializes a new instance of the HijriCalendar class.

Fields

CurrentEra	Represents the current era of the current calendar. The value of this field is 0. (Inherited from Calendar)
HijriEra	Represents the current era. This field is constant.

Properties

AlgorithmType	Gets a value that indicates whether the current calendar is solar-based, lunar-based, or a combination of both.
DaysInYearBeforeMinSupportedYear	Gets the number of days in the year that precedes the year that is specified by the MinSupportedDateTime property.
Eras	Gets the list of eras in the HijriCalendar.
HijriAdjustment	Gets or sets the number of days to add or subtract from the calendar to accommodate the variances in the start and the end of Ramadan and to accommodate the date difference between countries/regions.
IsReadOnly	Gets a value indicating whether this Calendar object is read-only. (Inherited from Calendar)
MaxSupportedDateTime	Gets the latest date and time supported by this calendar.
MinSupportedDateTime	Gets the earliest date and time supported by this calendar.
TwoDigitYearMax	Gets or sets the last year of a 100-year range that can be represented by a 2-digit year.

Methods

AddDays(DateTime, Int32)	Returns a DateTime that is the specified number of days away from the specified DateTime. (Inherited from Calendar)
AddHours(DateTime, Int32)	Returns a DateTime that is the specified number of hours away from the specified DateTime. (Inherited from Calendar)
AddMilliseconds(DateTime, Double)	Returns a DateTime that is the specified number of milliseconds away from the specified DateTime. (Inherited from Calendar)
AddMinutes(DateTime, Int32)	Returns a DateTime that is the specified number of minutes away from the specified DateTime. (Inherited from Calendar)
AddMonths(DateTime, Int32)	Returns a DateTime that is the specified number of months away from the specified DateTime.
AddSeconds(DateTime, Int32)	Returns a DateTime that is the specified number of seconds away from the specified DateTime. (Inherited from Calendar)
AddWeeks(DateTime, Int32)	Returns a DateTime that is the specified number of weeks away from the specified DateTime. (Inherited from Calendar)
AddYears(DateTime, Int32)	Returns a DateTime that is the specified number of years away from the specified DateTime.
Clone()	Creates a new object that is a copy of the current Calendar object. (Inherited from Calendar)
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetDayOfMonth(DateTime)	Returns the day of the month in the specified DateTime.
GetDayOfWeek(DateTime)	Returns the day of the week in the specified DateTime.
GetDayOfYear(DateTime)	Returns the day of the year in the specified DateTime.
GetDaysInMonth(Int32, Int32, Int32)	Returns the number of days in the specified month of the specified year and era.
GetDaysInMonth(Int32, Int32)	Returns the number of days in the specified month and year of the current era. (Inherited from Calendar)
GetDaysInYear(Int32, Int32)	Returns the number of days in the specified year and era.
GetDaysInYear(Int32)	Returns the number of days in the specified year of the current era. (Inherited from Calendar)
GetEra(DateTime)	Returns the era in the specified DateTime.
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetHour(DateTime)	Returns the hours value in the specified DateTime. (Inherited from Calendar)
GetLeapMonth(Int32, Int32)	Calculates the leap month for a specified year and era.
GetLeapMonth(Int32)	Calculates the leap month for a specified year. (Inherited from Calendar)
GetMilliseconds(DateTime)	Returns the milliseconds value in the specified DateTime. (Inherited from Calendar)
GetMinute(DateTime)	Returns the minutes value in the specified DateTime. (Inherited from Calendar)
GetMonth(DateTime)	Returns the month in the specified DateTime.
GetMonthsInYear(Int32, Int32)	Returns the number of months in the specified year and era.
GetMonthsInYear(Int32)	Returns the number of months in the specified year in the current era. (Inherited from Calendar)
GetSecond(DateTime)	Returns the seconds value in the specified DateTime. (Inherited from Calendar)
GetType()	Gets the Type of the current instance. (Inherited from Object)
GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek)	Returns the week of the year that includes the date in the specified DateTime value. (Inherited from Calendar)
GetYear(DateTime)	Returns the year in the specified DateTime.
IsLeapDay(Int32, Int32, Int32, Int32)	Determines whether the specified date is a leap day.
IsLeapDay(Int32, Int32, Int32)	Determines whether the specified date in the current era is a leap day. (Inherited from Calendar)
IsLeapMonth(Int32, Int32, Int32)	Determines whether the specified month in the specified year and era is a leap month.
IsLeapMonth(Int32, Int32)	Determines whether the specified month in the specified year in the current era is a leap month. (Inherited from Calendar)
IsLeapYear(Int32, Int32)	Determines whether the specified year in the specified era is a leap year.
IsLeapYear(Int32)	Determines whether the specified year in the current era is a leap year. (Inherited from Calendar)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Int32)	Returns a DateTime that is set to the specified date, time, and era.
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)
ToFourDigitYear(Int32)	Converts the specified year to a four-digit year by using the TwoDigitYearMax property to determine the appropriate century.
ToString()	Returns a string that represents the current object. (Inherited from Object)

See also

• Calendar
• Calendar
• OptionalCalendars
• UmAlQuraCalendar
• Working with Calendars