IIRC this is also the episode where we hear that a dead man's wife was pregnant when he died, and then later the daughter (mirror girl) says her dad always talked about something with her, so combined with that, I'm pretty sure that time in Dixing functions differently to anything outside the minds of quantum physicists addicted to thought experiments. (Time is an entanglement phenomenon maybe, so perhaps quantum physics works differently in Dixing, so time zigzags???)