World UFO Day is marked today, July 2.

World UFO Day is an awareness day for people to gather together and watch the skies for unidentified flying objects. In the past there were two days that were called World UFO day. July 2 and June 24. The WUFODO (World UFO Day Organization) declared July 2 to be the official World UFO day. This was done to eliminate any confusion. Also, the original first World UFO Day was celebrated on July 2 in 2001.

June 24 is the date that aviator Kenneth Arnold reported what is generally considered to be unidentified flying object sighting in the United States, while July 2 commemorates the supposed UFO crash in the 1947 Roswell UFO Incident.

The goal of the July 2 celebration is to raise awareness of the Roswell findings, and to gain support in forcing governments to "tell the truth about earthly visits from outer space aliens". This day is celebrated in the United States, the United Kingdom, Germany, Canada, China and many other countries.