What Day Is Ufo Day 2025. While it might not have been a flying saucer, it still counts as a ufo—an unidentified flying object! The observance has two possible dates:.

Across the globe, world ufo day is celebrate on june 24th—the date that aviator kenneth arnold reported what is generally considered to be the first unidentified flying object. World ufo day commemorates two separate dates june 24 and july 2 on the national day calendar.