How did Islamic calendar impact Islam

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Explanation:

The Islamic calendar, commonly known as the Hijr calendar or the Muslim calendar, is a religious calendar used in the Islamic world. (For civil purposes, most countries currently adopt the Gregorian calendar.)

The Islamic calendar is totally decoupled from astronomical seasons, which are indicated by the equinoxes and solstices, unlike other calendar systems that employ leap days or leap months to align the calendar with the solar year. The Islamic year is always roughly 11 days shorter than the solar year.

The Hijri calendar, also known as the Lunar Hijri calendar and the Islamic, Muslim, or Arabic calendar, is a lunar calendar with 12 lunar months and 354 or 355 days in a year.

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