A world clock is a clock that displays the time for various cities around the world. The display can take various forms:
The clock face can incorporate multiple round analog clocks with moving hands or multiple digital clocks with numeric readouts, with each clock being labeled with the name of a major city or time zone in the world. The World Clock in Alexanderplatz displays 146 cities in all 24 time zones on its head.
It could also be a picture map of the world with embedded analog or digital time displays.
A moving circular map of the world, rotating inside a stationary 24-hour dial ring. Alternatively, the disc can be stationary and the ring moving.
Light projection onto a map representing daytime, used in the Geochron, a brand of a particular form of the world clock.
The clock face can incorporate multiple round analog clocks with moving hands or multiple digital clocks with numeric readouts, with each clock being labeled with the name of a major city or time zone in the world. The World Clock in Alexanderplatz displays 146 cities in all 24 time zones on its head.
It could also be a picture map of the world with embedded analog or digital time displays.
A moving circular map of the world, rotating inside a stationary 24-hour dial ring. Alternatively, the disc can be stationary and the ring moving.
Light projection onto a map representing daytime, used in the Geochron, a brand of a particular form of the world clock.
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