When did the world clock start

World clock

The 16-ton, 10-meter-high world time clock on Alexanderplatz in Berlin-Mitte is a popular meeting place for Berliners and tourists. It was designed by the industrial designer Erich John, the construction work was directed by Hans-Joachim Kunsch.
In 1962, a fundamental redesign and redesign of Alexanderplatz began to become the center of the GDR capital. In the course of these measures, among other things, the world clock and the diagonally opposite fountain of friendship among nations were created. The building was inaugurated on October 2, 1969 under its official name "Urania-Weltzeituhr".

A 24-sided prism rests on the almost 3 m high column, which is surrounded by a stone mosaic in the form of a compass rose. Each of these 24 pages corresponds to one of the 24 time zones and is assigned to important cities in those time zones. In the prism there is a cylinder on which you can read the current time for over 140 cities.
The clock's technology is located about two meters below the ground. Above the world clock is a simplified replica of the solar system, including the planets orbiting the sun once a minute.

In the course of the restoration work carried out in 1997, errors were also corrected because some cities had been assigned to the wrong time zones. But cities have also been removed and new ones added.
The restoration was carried out by Hans-Joachim Kunsch, who was also responsible for the construction of the world clock. The costs amounted to 350,000 DM.
After the renovation, the Berlin Senate faced vigorous protests from Slovakia, because instead of "Bratislava" the German name "Pressburg" had been etched into the aluminum.
The Georgians, whose capital "Tblissi" was immortalized as "Tbilisi" on the world clock, were far more relaxed.

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