Despite the national holiday of Tag der Deutschen Einheit—German Unity Day—on October 3rd, some supermarkets and shops will remain open across Deutschland. The holiday commemorates the reunification of East and West Germany in 1990. Consumers in cities such as Berlin and Munich will find certain retail establishments operating with modified hours. While most stores will be closed, exceptions include some branches of larger supermarket chains and smaller businesses. Customers are advised to check the specific opening hours of their local stores beforehand, as regulations can vary by Bundesland. This provides shopping convenience for those who require essential goods or wish to take advantage of the holiday weekend. Information regarding open shops is available online and directly from individual retailers.