As Ramadan 2026 approaches, differing moonsighting predictions have sparked discussions about a possible split in the fasting start dates. Saudi Arabian authorities have forecast the visibility of the Ramadan crescent moon on a particular evening, but many astronomers elsewhere disagree, asserting that the moon will not be visible on that night anywhere on Earth.
This discrepancy could lead to Muslim communities beginning their fasts on different days depending on which moonsighting predictions they follow. Traditionally, the sighting of the new moon marks the beginning of Ramadan, but modern astronomical calculations and local sightings have sometimes resulted in varying start dates.
The potential for a dual start date in 2026 highlights ongoing debates between strictly following astronomical data versus relying on traditional physical moon sightings. Communities may have to prepare for a Ramadan that begins on separate days, reflecting the diversity of interpretation and practice within the global Muslim population.