October 15, 2018[nb 1] is the 15th day in the month of October 2018.
- 07:16 EDT: At STAR Labs Detroit, Victor Stone confronts his father, Silas, and complains about him not turning up to Victor's football game. An alien device in the laboratory has a cable accidentally knocked loose, which triggers it to self-destruct.
- 07:19 EDT: In Happy Harbor, Tigress gives Forager a charm made by Zatanna which disguises him as a human. He and Halo depart with Miss Martian and Lucas Carr for their first day at school.
- 19:01 EDT: Nightwing and Geo-Force resolve their issues, with the latter stating that he will be okay going forward.
- 16:16 PDT: Beast Boy finishes a scene for Space Trek 3016 at Goode World Studios in Burbank.
- 19:21 EDT: At Nightwing and the rest of his team, along with Miss Martian and Helga Jace, meet in Happy Harbor to discuss Halo's new ability to open boom tubes. The group figure out that Halo is part-Gabrielle Daou and part-Motherbox.
- 18:39 PDT: In Perdita's room at the Luthor Grande Hotel in Beverly Hills, Beast Boy tries out Perdita's new Goode Goggles and is brainwashed.
- Series producer Greg Weisman stated that even though the series does not have a "canon year", the production team based the days of the week on the 2010 calendar. In "Happy New Year" there's a five year time jump and in "Princes All" there's a two year jump, making the current year 2018. (Weisman, Greg (2011-11-18). Question #13695. Ask Greg. Retrieved 2011-11-18.).