13 Facts About Hijri calendar


Hijri calendar, 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.

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Four of the twelve Hijri calendar months are considered sacred: Rajab, and the three consecutive months of Dhu al-Qa'dah, Dhu al-Hijjah and Muharram .

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Islamic Hijri calendar is based on a different set of conventions being used for the determination of the month-start-dates.

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Major Muslim associations of France announced in 2012 that they would henceforth use a Hijri calendar based on astronomical calculations, taking into account the criteria of the possibility of crescent sighting in any place on Earth.

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Isma'ili-Taiyebi Bohras having the institution of da'i al-mutlaq follow the tabular Islamic Hijri calendar prepared on the basis of astronomical calculations from the days of Fatimid imams.

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Turkish Muslims use an Islamic Hijri calendar which is calculated several years in advance by the Turkish Presidency of Religious Affairs .

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Country uses the Umm al-Qura Hijri calendar, based on astronomical calculations, but this is restricted to administrative purposes.

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The parameters used in the establishment of this Hijri calendar underwent significant changes during the decade to AH 1423.

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In 2007, the Islamic Society of North America, the Fiqh Council of North America and the European Council for Fatwa and Research announced that they will henceforth use a Hijri calendar based on calculations using the same parameters as the Umm al-Qura Hijri calendar to determine the beginning of all lunar months .

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Solar Hijri calendar is a solar calendar used in Iran and Afghanistan which counts its years from the Hijra or migration of Muhammad from Mecca to Medina in 622 CE.

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Tabular Islamic Hijri calendar is a rule-based variation of the Islamic Hijri calendar, in which months are worked out by arithmetic rules rather than by observation or astronomical calculation.

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Islamic Hijri calendar is used primarily for religious purposes, and for official dating of public events and documents in Muslim countries.

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British author Nicholas Hagger writes that after seizing control of Libya, Muammar Gaddafi "declared" on 1 December 1978 "that the Muslim Hijri calendar should start with the death of the prophet Mohammed in 632 rather than the hijra in 622".

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