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.

Ramadan 2025, the holy month of fasting will begin after crescent moon sighting. This year, a rare alignment of Islamic and Gregorian calendars occurs, with fasting possibly starting on March 1 for many countries.

The moon sighting before Ramadan is a practice that is a traditional and essential aspect of the Islamic faith as it determines the commencement of the month of fasting from dawn