How the Islamic calendar works

The Islamic calendar is based on the lunar cycle, with each month beginning with the sighting of the new crescent moon. This makes astronomy a crucial element in determining Islamic events and festivals, including Ramadan and Eid. While the lunar cycle spans 29.5 days, the Islamic calendar assigns 29 or 30 days to each month, accounting for the practical constraints of the lunar cycle. This adaptability in the calendar ensures the accurate observation of religious milestones in the Islamic tradition.