October 31, 2010[nb 1] is the 31st and last day in the month of October 2010.
- 19:26 EDT: Harm steals the Sword of Beowulf from a New York City museum.
- 19:34 EDT: Wally is ready for the Happy Harbor High School Halloween dance, while Miss Martian helps Superboy into his costume.
- 19:57 EDT: Artemis and Zatanna zoom out of a Zeta-Tube in Manhattan for their girls' night out.
- 20:15 EDT: Megan, Conner and Wally arrive at the Happy Harbor High School Halloween dance.
- ↑ 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. (Weisman, Greg (2011-11-18). Question #13695. Ask Greg. Retrieved 2011-11-18.).