Editing World clock (section)

{{Short description|Clock that displays the times in various locations around the globe}}
[[File:Urania-Weltzeituhr auf dem Alexanderplatz in Berlin 2015.jpg|thumb|The ''Weltzeituhr'' ([[World Clock (Alexanderplatz)|World Clock]]) at [[Alexanderplatz]] in [[Berlin]]<ref name="Ärger">Helmut Caspar: ''Ärger mit der Weltzeituhr am Alex. Städtenamen sind nicht korrekt.'' In: ''[[Märkische Allgemeine Zeitung]]'', 24/25 December 1997.</ref>]]
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 [[analog clock|analogue]] clocks with moving hands or multiple [[Digital data|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.<ref>{{Cite web |last=Team |first=Berlin Hub |date=2016-04-01 |title=The History Of The World Clock In 1 Minute |url=https://theculturetrip.com/germany/articles/the-history-of-the-world-clock-in-1-minute/ |access-date=2022-12-09 |website=Culture Trip |language=en |archive-date=2022-12-09 |archive-url=https://web.archive.org/web/20221209003808/https://theculturetrip.com/germany/articles/the-history-of-the-world-clock-in-1-minute/ |url-status=live }}</ref><ref>{{Cite web |date=2021-03-12 |title=Berlin: A World Clock for those who Could Not Travel the World |url=https://berlinspectator.com/2021/03/12/berlins-gathering-place-the-world-clock-2/ |access-date=2022-12-09 |website=The Berlin Spectator |language=en-US |archive-date=2022-12-01 |archive-url=https://web.archive.org/web/20221201194546/https://berlinspectator.com/2021/03/12/berlins-gathering-place-the-world-clock-2/ |url-status=live }}</ref>
*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 world clock.
There are also worldtime [[watch]]es, both [[wrist watch]]es and [[pocket watch]]es.  Sometime manufacturers of timekeepers erroneously apply the worldtime label to instruments that merely indicate time for two or a few [[time zone]]s, but the term should be used only for timepieces that indicate time for all major [[time zone]]s of the globe.