Germany operates on Central European Time (CET) during winter months, which is 1 hour ahead of Coordinated Universal Time (UTC+1). During daylight saving time, observed from the last Sunday in March to the last Sunday in October, Germany switches to Central European Summer Time (CEST), which is UTC+2.
All of Germany follows the same timezone. Major cities including Berlin, Munich, Hamburg, Frankfurt, Cologne, Stuttgart, and Düsseldorf all observe the same time. Germany is the largest economy in Europe and a major hub for international business.
Germany was the first country in the world to implement daylight saving time, introducing it on April 30, 1916, during World War I to conserve coal. The practice was soon adopted by other countries, though Germany itself has periodically abandoned and readopted DST throughout its history.