Ramadan is not uniformly observed globally — the start date can vary by country or even be different mosque to mosque in the same city for a variety of reasons. But it all starts with a sighting of the crescent moon.

Muslims worldwide eagerly await Ramadan, a time of fasting, praying, and spiritual growth. In 2025, a rare alignment of the Moon sighting will likely see many countries beginning Ramadan on March 1. Guidelines exist for those fasting,