world clock
Illustration — The Weltzeituhr (World Clock) at Alexanderplatz in Berlin A world clock is a clock which displays the time for various cities around the world. The display can take various forms: • The clock face can incorporate multiple round analogue clocks with moving hands or multiple digital clocks with numeric readouts, with each clock being labelled 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 analogue or digital time-displays. • A moving circular map of the world, rotating inside a stationary 24-hour dial ring.
Also recorded as international clock
world clock
Alvin Jewett Johnson · This file was provided to Wikimedia Commons by Geographicus Rare Antique Maps, a specialist dealer in rare maps and other cartography of the 15th, 16th, 17th, 18th and 19th centuries, as part of a co · Public domain
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Illustration — The Weltzeituhr (World Clock) at Alexanderplatz in Berlin A world clock is a clock which displays the time for various cities around the world. The display can take various forms: • The clock face can incorporate multiple round analogue clocks with moving hands or multiple digital clocks with numeric readouts, with each clock being labelled 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 analogue or digital time-displays. • A moving circular map of the world, rotating inside a stationary 24-hour dial ring.
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wikidata · Q1451661 · wikipedia · World clock
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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 world clock. There are also worldtime watches, both wrist watches and pocket watches. Sometime manufacturers of timekeepers erroneously apply the worldtime label to instruments that merely indicate time for two or a few time zones, but the term should be used only for timepieces that indicate time for all major time zones of the globe.
Clock that shows the time in various cities around the world
A very attractive example of Johnson's 1866 diagram of the world's time zones. Consists of a circular engraving in which numerous clocks are drawn, each representing a major world city. At the center is clock representing the time in Washington, D.C. The time in Washington is set at 12 and the remaining clocks are adjusted accordingly. So, if it is 12 in Washington, it is 11:02 in Calcutta and 6:3
Alvin Jewett Johnson · This file was provided to Wikimedia Commons by Geographicus Rare Antique Maps, a specialist dealer in rare maps and other cartography of the 15th, 16th, 17th, 18th and 19th centuries, as part of a co
Weltzeituhr vor dem Haus des Gastes in der Friedensstraße von Arendsee, ehem. Landwirtschaftliche Schule
Radler59
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
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