Confused

Rudy: I want to finish this [drawing] today.
Kelly: OK.
Rudy: When is today?
Kelly: Right now. It's today right now.
Rudy: It's today?
Kelly: Yes, all day it's today.
Rudy: Oh. I don't want to do it today. Can I finish it yesterday?
Kelly: No, yesterday is all over.
Rudy: Oh. I want to finish it tomorrow.
Kelly: OK. Put it on the table.
Rudy: When is it tomorrow?
Kelly: Tomorrow it will be tomorrow. After today, it's tomorrow.
Rudy: OK. I will finish it tomorrow. What day is tomorrow?
Kelly: Tomorrow will be Wednesday.
Rudy: But it's tomorrow?!?
Kelly: Yes, tomorrow is Wednesday. The day after is Thursday.
Rudy: OK. I will finish it onnn....Sunday!