But the social construct of work hours shifted later by more than that one hour during the last century, so this is not what people actually prefer by their actions.
People disagree on whether to prioritize mornings or afternoons in the winter. For the summer, only very few people care if the sun rises at four or five (or whatever), but most people like having long summer evenings. Therefore the summer tips the scales.
Then they are also social activities that you just need to wait for in summer, because they can only happen after sunset. Viewing a movie (outside), sitting around a fire, having a party all just really happen after sunset.