7:45 - 8 a.m. for second seating (depending on restaurant). We were done and out of the ship this year by around 8:45 a.m. Furthermore, this year there were plenty of customs agent so we were out of the terminal by around 9:15 a.m. (we had to wait for luggage and repack some stuff). Literally no line whatsoever for customs this year. I would say some time between 9:15 - 9:30 a.m. is probably realistic.