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Arthur C. Clarke proposed the use of a single time zone in 1976. [2] Attempts to abolish time zones date back half a century [1] and include the Swatch Internet Time. Economics professor Steve Hanke and astrophysics professor Dick Henry at Johns Hopkins University have been proponents of the concept and have integrated it in their Hanke–Henry Permanent Calendar.
The evolution of United States standard time zone boundaries from 1919 to 2024 in five-year increments. Plaque in Chicago marking the creation of the four time zones of the continental US in 1883 Colorized 1913 time zone map of the United States, showing boundaries very different from today Map of U.S. time zones during between April 2, 2006, and March 11, 2007.
Time zones of the world. A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.
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Instead, they record the date or time that the page was most recently edited or purged. If you want a clock that constantly updates, then go to Special:Preferences#mw-prefsection-gadgets and enable the Appearance item, "Add a clock to the personal toolbar that displays the current time in UTC and provides a link to purge the current page".
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Time zones are definitely regions, not offsets, as explained in the blog post cited in the article. The US Standard Time Act of 1918 doesn't use the term "time zone", but does speak of "the territory of continental United States" being "divided into five zones", with each zone being given specific "standard time"s, and specifying that each zone's time gets "advanced one hour" "at two o'clock ...
This includes articles on time in the United States, including its insular areas. Subcategories This category has the following 5 subcategories, out of 5 total.
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