is there a specific calendar pertaining to this religion?
Yes, the Islamic calendar.
Islamic calendar
The Islamic calendar ( '), also known as the Hijri, Lunar Hijri, Muslim or Arabic calendar, is a lunar calendar consisting of 12 lunar months in a year of 354 or 355 days
where did the tropical storm zelda strike? The Marshall Islands where is this place located? It is  near the Equator in the Pacific Ocean, slightly west of the International Date Line. what is the date line? It is an imaginary line of demarcation on the surface of Earth that runs from the North Pole to the South Pole. what is its purpose? It demarcates the change of one calendar day to the next. mention its significance in any major religion. In Islam, the day for holding the "Jumu'ah" prayer appears to be local Friday everywhere in the world.
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Islamic calendar [SEP] Introduction
The Islamic calendar ( '), also known as the Hijri, Lunar Hijri, Muslim or Arabic calendar, is a lunar calendar consisting of 12 lunar months in a year of 354 or 355 days. It is used to determine the proper days of Islamic holidays and rituals, such as the annual period of fasting and the proper time for the Hajj. In almost all countries where the predominant religion is Islam, the civil calendar is the Gregorian calendar, with Syriac month-names used in the Levant and Mesopotamia (Iraq, Syria, Jordan, Lebanon and Palestine). Notable exceptions to this rule are Iran and Afghanistan, which use the Solar Hijri calendar.