He next appears in "Batman" #312 (June 1979), in which his crimes are based on the days of the week, and his costumes reflect the Norse and Roman gods they were named for, e.g. Saturn. Calendar Man fires an ultrasonic sound weapon at Batman, nearly killing him. While Batman recuperates, Calendar Man commits crimes on Friday and Saturday. He plans to leave Gotham City on a train called the Western Sun Express on Sunday, knowing that the police would be waiting for him to attempt to steal an artifact of the Egyptian God of the Sun, Ra. Batman captures him at the train station before he boards.