Following the trends of other European cities, the first public clock in Vienna was installed in 1415 on the south tower of St. Stephen's Cathedral. Until the 18th century, there were mainly church clocks, which were usually located on belfries. During the 19th century, watches began to appear on other buildings, on town halls, for example. As a result of the increased need of the townspeople to know the exact time, today's standard of the dial with hour and minute hands has been established. In 1862, the clock was installed in St. Stephen's Cathedral in two round windows. While the left watch is a traditional dial and pointer, the right one got a jumping step for the hourly and five-minute hands, which was replaced in 1909 with one jump per minute. Since 1864, numerous improvements have been made in the supply of watches to citizens on the basis of a resolution of the Vienna Municipal Council. Among other things, all suburbs received at least one public clock. In addition, in some tower clocks, the dial was replaced with a transparent backlight, which made it possible to see time at night. In addition to the different façade watches, a new type was added in 1865: a desk and column clock, designed as part of the Stadtmobiliars. The first column clock was commissioned in September 1865 on a pilot basis in Am Hof and installed near Karlter on Praterstrasse. In 1877, the first pneumatic-driven watch in the world was solemnly commissioned at Schottenring. When after some time the clock turned out to be too inaccurate, they looked for other methods of controlling the clockwork. The solution was developed by Friedrich von Lössl, which took into account daily changes in air pressure and air temperature to prevent heating or cooling of the plant spring. In August 1883, a pavilion equipped with the World Clock was opened in the city park. The clock showed the current time in Vienna, created a special hourly game at dawn and dusk, and was also equipped with several smaller clocks that showed time in various other cities, such as Paris, London and Istanbul. After electrification of the Vienna tram of 1897 and street lighting of 1902 in October 1906, the first electric clock of Vienna was opened, which crowns Arthaberbrunnen at the Arthaberpark. And the most ancient and famous city clocks we will see later. It would be nice to catch it by 12:00. Translated with Google Translate