Give some stream of consciousness and then the answer. A separate story, "Mob of the Dead", taking place also in Dimension 63, focuses on four mobsters: Salvatore "Sal" DeLuca, Billy Handsome, Michael "Finn" O'Leary, and Albert "The Weasel" Arlington, who are incarcerated at Alcatraz Island. On New Year's Eve 1933, the four attempt to escape the prison, using Weasel's plan to build a makeshift airplane called Icarus. However, the prison becomes infested with zombies, and they are forced to fight their way out. They succeed in building the airplane, but crash-land at the Golden Gate Bridge. They are then teleported back to the prison, with no memories of their previous attempt (except Weasel, who keeps a journal of the ongoing events). They continuously try to escape, but the result remains the same. After many failures, they discover that they were actually stuck in Purgatory, constantly repeating a cycle as punishment for their past sins. In reality, the escape plan never came to fruition, and Weasel was killed by the other three on New Year's Eve, while the rest were given the death penalty weeks later. Having remembered the truth, Sal, Billy and Finn set out to kill Weasel once again. Two possible endings can occur: if Weasel is killed, the cycle repeats once again; if Weasel lives and the other three are killed, the cycle is broken, and he is finally freed of his punishment.

Answer this question: when does mob of the dead take place?
The important part for answering this question is: On New Year's Eve 1933, the four attempt to escape the prison, using Weasel's plan to build a makeshift airplane called Icarus.
Therefore, the answer is New Year 's Eve 1933.