Join Royal Observatory Greenwich and the New Crescent Society live, as we scan the skies searching for a glimpse of the new crescent Moon. The sighting of a new crescent moon – when the Moon appears as a slim sliver of light in the sky – marks the beginning of a new month in the Islamic calendar. In 2026, the holy month of Ramadan is expected to begin on the evening of 18 February in the UK. The exact date however depends on when the Moon is first seen. Director of the New Crescent Society Imad