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The Day of Arafah (Arabic: يوم عرفة, romanized: Yawm 'Arafah) is an Islamic holiday that falls on the ninth day of Dhu al-Hijjah of the lunar Islamic Calendar. [4] It is the second day of the Hajj pilgrimage and is followed by the holiday of Eid al-Adha . [ 5 ]
A calendrical calculation is a calculation concerning calendar dates. Calendrical calculations can be considered an area of applied mathematics. Some examples of calendrical calculations: Converting a Julian or Gregorian calendar date to its Julian day number and vice versa (see § Julian day number calculation within that article for details).
Islamic calendar stamp issued at King Khalid International Airport on 10 Rajab 1428 AH (24 July 2007 CE). The Hijri calendar (Arabic: ٱلتَّقْوِيم ٱلْهِجْرِيّ, romanized: al-taqwīm al-hijrī), or Arabic calendar, also known in English as the Muslim calendar and Islamic calendar, is a lunar calendar consisting of 12 lunar months in a year of 354 or 355 days.
It is also a day of supererogatory fasting – AH 60. 12 Dhu al-Hijjah or 18 Dhu al-Hijjah, assassination of Uthman RA; 15 Dhu al-Hijjah, birth of Twelver Imām, ʿAlī al-Naqī – AH 214 [Disputed date]. 18 Dhu al-Hijjah, Shīʿite Muslims celebrate the event of Ghadir Khumm – AH 10. 19 Dhu al-Hijjah, Fatimah went to Ali's house after their ...
The overall function, , normalizes the result to reside in the range of 0 to 6, which yields the index of the correct day of the week for the date being analyzed. The reason that the formula differs between calendars is that the Julian calendar does not have a separate rule for leap centuries and is offset from the Gregorian calendar by a fixed ...
alone: Display only the number of years and the calendar era according to the |main= parameter : E.g.: "AUC 964" number: Display only a natural number without any era: If |1= is a Gregorian year, the number returned equals the value of that year in the astronomical calendar plus 753; if |1= is an year Ab Urbe Condita, the number returned equals exactly the value of that year in the ...
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The Rata Die method works by adding up the number of days d that has passed since a date of known day of the week D. The day of-the-week is then given by (D + d) mod 7, conforming to whatever convention was used to encode D. For example, the date of 13 August 2009 is 733632 days from 1 January AD 1. Taking the number mod 7 yields 4, hence a ...