July 4, 2010 is the fourth day in the month of July 2010. In America, it is a federal holiday called [nb 1] Independence Day.
12:00 EDT: Batman and Robin defeat Mister Freeze, who was attacking park goers in Gotham City.
 9:01 PDT: Green Arrow and Speedy defeat Icicle Jr. on a suspension bridge in Star City.
 6:02 HST: Aquaman and Aqualad defeat Killer Frost aboard a naval battleship in Pearl Harbor.
 11:03 CDT: Flash and Kid Flash defeat Captain Cold, who was stealing diamonds in Central City.
 14:00 EDT: Batman, Green Arrow, Aquaman, and Flash bring their partners Robin, Speedy, Aqualad and Kid Flash are brought to the Hall of Justice in Washington, D.C. for the first time and are welcomed by Martian Manhunter and Red Tornado.
 Post 14:00 EDT: Speedy reveals the existence of the Watchtower and quits as Green Arrow's sidekick. While the League leaves to deal with the sorcerer Wotan before he can eclipse the sun with an amulet. Robin, Aqualad and Kid Flash decide to investigate Cadmus themselves.
 Post 14:00 EDT: Aqualad, Kid Flash, and Robin go on an unsanctioned mission to Cadmus.
↑ 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.)