DINING AND NIGHTLIFE Restaurants in bigger towns and cities tend to be busiest between 11:30 – 13:30 for lunch and 19:00 – 21:00 for dinner. Keep in mind that some cafes and coffee houses are closed on Sundays. Bars and clubs may stay open until 1:00 am on weekdays and 3:00 am on weekends. We recommend booking at restaurants in advance, especially on weekends. The manner of dress is generally casual in Norway, and most bars and restaurants in Oslo do not enforce a dress code. But the city does tend to have a more sophisticated atmosphere like other major European cities so you may wish to bring one nicer outfit and a smart pair of shoes if you plan on dining or drinking at fine or trendy establishments.