The world time clock was installed at Alexanderplatz in GDR times. Since then, the eye-catching clock system is a popular meeting place for Berliners and tourists. The world clock was designed by the industrial designer Erich John as part of the socialist redesign of Alexanderplatz. After nine months of construction, she was on 30. September 1969 passed to the public. The full name Urania World Clock derives from the fact that during demolition work on the Alexanderplatz a 2Uraniasäule "(weather column) was found. This find gave John the ultimate idea for the World Clock. Construction of the World Clock The World Clock consists of a cylinder with 24 corners, which stands on a pillar. Each of the corners of the rotating cylinder is covered with etched aluminum plates and enameled in color. These 24 segments represent the 24 time zones of the earth schematically. On the aluminum plates, the most important names of the cities from the time zones were milled. An hour ring rotates in the cylinder so that the current times in the respective time zones can be read from the outside. At the top of the world clock is a simplified model of the solar system. In a room below the clock, a rebuilt satellite transmission from GDR times is still driving the hour ring. The floor at the feet of the World Clock was designed with a mosaic in the shape of a wind rose.
