This week, McDonald’s announced that most of its U.S. locations will have extended late-night hours through the summer. When you piece together the year the Golden Arches has had and throw in a little bit of simple economics, it’s one of the smartest moves McDonald’s could make.

McDonald's will close all five of its CosMc's test locations this summer, 18 months after introducing the beverage-focused concept at four restaurants in Texas and one in a Chicago suburb.