Umm al-Qura

Umm al-Qura is a specialized calendar system used primarily in Saudi Arabia to determine Islamic dates, especially the start of months like Ramadan and Eid. It is based on astronomical calculations, specifically the sighting of the new moon, which marks the beginning of each lunar month. The calendar aligns with Islamic traditions and religious observances, providing an official framework for planning religious events and government functions. While traditional moon sightings remain significant, Umm al-Qura offers a standardized and predictable schedule that supports consistency and coordination across the country.