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  2. History of time in the United States - Wikipedia

    en.wikipedia.org/wiki/History_of_time_in_the...

    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.

  3. Coordinated Universal Time - Wikipedia

    en.wikipedia.org/wiki/Coordinated_Universal_Time

    UTC is also the time standard used in aviation, [8] e.g. for flight plans and air traffic control. In this context it is frequently referred to as Zulu time, as described below. Weather forecasts and maps all use UTC to avoid confusion about time zones and daylight saving time. The International Space Station also uses UTC as a time standard.

  4. Time zone - Wikipedia

    en.wikipedia.org/wiki/Time_zone

    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.

  5. Time in Ghana - Wikipedia

    en.wikipedia.org/wiki/Time_in_Ghana

    Ghana, as the erstwhile British Gold Coast colony, adopted Greenwich Mean Time (UTC±00:00) on 2 November 1915 via the Interpretation Amendment Ordinance. [5] Daylight saving time (DST) was first introduced in 1919, advancing the clock twenty minutes to UTC+00:20 at 02:00 (local time) on the first day of September and reverting to UTC±00:00 – the standard time – on the first day of ...

  6. East African Community - Wikipedia

    en.wikipedia.org/wiki/East_African_Community

    The East African Community (EAC) is an intergovernmental organisation in East Africa.The EAC's membership consists of eight states: Democratic Republic of the Congo, the Federal Republic of Somalia, the Republics of Burundi, Kenya, Rwanda, South Sudan, Uganda and Tanzania. [5]

  7. Central European Time - Wikipedia

    en.wikipedia.org/wiki/Central_European_Time

    CET is also known as Middle European Time (MET, German: MEZ) and by colloquial names such as Amsterdam Time, Berlin Time, Brussels Time, Budapest Time, Madrid Time, Paris Time, Rome Time, Prague time, Warsaw Time or Romance Standard Time (RST). The 15th meridian east is the central axis per UTC+01:00 in the world system of time zones.

  8. African time - Wikipedia

    en.wikipedia.org/wiki/African_time

    African time (or Africa time) is the perceived cultural tendency in parts of Africa and the Caribbean [1] toward a more relaxed attitude to time. [ 2 ] [ 3 ] This is sometimes used in a pejorative sense, about tardiness in appointments, meetings and events. [ 4 ]

  9. Eastern Time Zone - Wikipedia

    en.wikipedia.org/wiki/Eastern_Time_Zone

    The Eastern Time Zone (ET) is a time zone encompassing part or all of 23 states in the eastern part of the United States, parts of eastern Canada, and the state of Quintana Roo in Mexico. Places that use: Eastern Standard Time (EST), when observing standard time (autumn/winter), are five hours behind Coordinated Universal Time (UTC−05:00).