Offices and authorities are closed on saturdays and sundays. Stores are open on saturdays, but sometimes shorter than on weekdays. On sundays stores are closed, with the exception of kiosks, snack bars and restaurants. Bakeries are sometimes open for a few hours on sunday morning. In general every store defines its own opening hours. Usually they are written down at the door of the store. If the store has a website, you can check the opening hours there as well. In Germany there are public holidays. On these days stores, offices and authorities are closed. Some public holidays differ among the federal states.