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  2. Military time zone - Wikipedia

    en.wikipedia.org/wiki/Military_time_zone

    The military time zones are a standardized, uniform set of time zones for expressing time across different regions of the world, named after the NATO phonetic alphabet. The Zulu time zone (Z) is equivalent to Coordinated Universal Time (UTC) and is often referred to as the military time zone.

  3. Coordinated Universal Time - Wikipedia

    en.wikipedia.org/wiki/Coordinated_Universal_Time

    This is an accepted version of this page This is the latest accepted revision, reviewed on 9 February 2025. Primary time standard "UTC" redirects here. For the time zone between UTC−1 and UTC+1, see UTC+00:00. For other uses, see UTC (disambiguation). It has been suggested that UTC offset be merged into this article. (Discuss) Proposed since December 2024. Current time zones Coordinated ...

  4. Z flag - Wikipedia

    en.wikipedia.org/wiki/Z_flag

    The Z flag when combined with four number flags (The leading two denoting hours, the trailing two denoting minutes) indicates Z Time (also called Zulu Time), a military and maritime term for Coordinated Universal Time (UTC)+0 (also known as Greenwich Mean Time (GMT)) expressed on a 24 hour clock.

  5. Date and time notation in South Africa - Wikipedia

    en.wikipedia.org/wiki/Date_and_time_notation_in...

    South Africa signed up to use ISO 8601 for date and time representation through national standard ARP 010:1989 in 1998 A.D. The most recent South African Bureau of Standards standard SANS 8601:2009 [1] "... is the identical implementation of ISO 8601:2004, and is adopted with the permission of the International Organization for Standardization" and was reviewed in 2016.

  6. 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.

  7. 24-hour clock - Wikipedia

    en.wikipedia.org/wiki/24-hour_clock

    Local time is designated as zone J or "Juliett". "1200J" ("twelve hundred Juliett") is noon local time. Greenwich Mean Time (GMT) or Coordinated Universal Time (UTC) is designated time zone Z, and thus called "Zulu time". (When used as a modern time zone, in practice, GMT and UTC coincide. For other purposes there may be a difference of about a ...

  8. South Africa Standard Time - Wikipedia

    en.wikipedia.org/wiki/South_Africa_Standard_Time

    South Africa observed a daylight saving time of GMT+03:00 between 20 September 1942 to 21 March 1943 and 19 September 1943 to 19 March 1944. [6] South African Standard Time is defined as "Coordinated Universal Time plus two hours" as defined in South African National Government Gazette No. 40125 of 8 July 2016. [7]

  9. List of tz database time zones - Wikipedia

    en.wikipedia.org/wiki/List_of_tz_database_time_zones

    The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [1] This is a list of time zones from release 2025a of the tz database. [2]