Until recently, the typical store in Germany was open every day, from Monday to Friday, 9 a.m. to 6.30 p.m. They closed at 2 p.m. on Saturday and all day Sunday. Once a month there was a special shopping Thursday when stores were open until 8.30 p.m. Conversely, opening hours In the United States are much longer and some supermarkets are open 24 hours a day, seven days a week. Store employees In Germany are highly unlonized and unions are traditionally opposed to any Increase in opening hours. To what extent do time-related cultural differences explain the huge difference in store opening hours between Germany and the United States?

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