Isn’t a Blue Moon the 2nd full moon of a calendar month? Why isn’t that the case this month? How did Blue Moons become part of folklore, anyway? The story of Blue Moons, here.
Earliest sightings of a young crescent in the west after sunset mark the start of the Islamic holy month of Ramadan. When will the UAE’s moon-sighting committee see this month’s young moon? If they’re using binoculars and telescopes (and have clear skies), they might see it May 5. For the eye alone, the date is probably May 6.