From tipping culture to fast food options and portion sizes, the United States has many mealtime customs that are unique to the country. While some American quirks won’t make a huge difference when traveling, others can seriously disrupt your vacation, like this timing rule to remember when traveling in Italy.

In the United States, people are accustomed to eating lunch around noon and dinner anywhere from 5 to 7 p.m., but in Italy, people often enjoy lunch between 1 and 3 p.m., while dinner doesn't start until 8:30 to 10:30 p.m. The important thing to note, is that most restaurants will close between these two meal times.

While some U.S. restaurants will close between lunch and dinner, in Italy it’s much more common with nearly all restaurants closing from 2:30 to 7:30 p.m. Of course, in more touristy locations, you’ll be able to find open restaurants, but in less busy areas, it’s unlikely any place will be open in these off hours so plan accordingly.