I've seen the movie twice, and while my concept of time in the movie changed after the second viewing, I'm still confused. The first time I watched it, the period of time between Clark finding the ship and Zod coming to Earth seemed very short, but now I'm questioning that. How much time passed from Clark's first meeting with Lois to his second one? I'm thinking Lois traveled around for a few weeks gathering stories, but I'm not sure. And how much time passed from their second meeting (in the cemetery) until Zod's message appeared? At first, it seemed like the next day, but then I thought about the fact that Perry told Lois she was being put on leave for three weeks and the next time you see her she's looking for toner for the copier. Are you supposed to think that Clark has been sitting around drinking beer with his mom for a month after becoming Superman?