Breakfast is served roughly between 7 a.m. and 9 a.m., and lunch between noon and 2 p.m.; you can arrive anytime within that window. Passengers who choose a Traditional Dining plan will be assigned a dinner time, either Early (sometime between 5:30 p.m. and 6:30 p.m.) or Late (an 8 p.m. or 8:30 p.m. start time).