International Sailor Moon Day is celebrated worldwide on June 30 and August 6, with the June 30 date established in 2015 by Lisa Terlato to honor the birthday of the titular character, Usagi Tsukino. The event has grown from a New York City meetup into an international celebration, with Emily Gonsalves managing events in Toronto and various independent organizers hosting local festivities globally. Participants engage in activities such as fan conventions, casual meetups, cosplay contests, and online celebrations. The cultural significance of Sailor Moon, a manga series created by Naoko Takeuchi, includes its impact on the magical girl genre and its association with women’s empowerment and LGBTQ+ representation. Fans are encouraged to participate by sharing their creations, binge-watching the series, or posting on social media using the hashtags #InternationalSailorMoonDay and #SailorMoonDay.