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  2. 24-hour clock - Wikipedia

    en.wikipedia.org/wiki/24-hour_clock

    24-hour digital clock in Miaoli HSR station. A public 24-hour clock in Curitiba, Brazil, with the hour hand on the outside and the minute hand on the inside.. A time of day is written in the 24-hour notation in the form hh:mm (for example 01:23) or hh:mm:ss (for example, 01:23:45), where hh (00 to 23) is the number of full hours that have passed since midnight, mm (00 to 59) is the number of ...

  3. Military designation of days and hours - Wikipedia

    en.wikipedia.org/wiki/Military_designation_of...

    Times relative to the designation are indicated with +/−[Arabic numeral] after the letter, replacing -day or -hour with a count of the same unit: "D−1" (the day before D-Day), "L+9" (9 hours after L-Hour) etc. [citation needed] In less formal contexts, the symbol or numeral may be spelled out: "D minus 1" or "L plus nine."

  4. Date and time notation in the United States - Wikipedia

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

    The 24-hour clock is used in military, public safety, and scientific contexts in the United States. [4] It is best known for its use by the military and is therefore commonly called "military time". In U.S. military use, 24-hour time is traditionally written without a colon (1800 instead of 18:00).

  5. Decimal time - Wikipedia

    en.wikipedia.org/wiki/Decimal_time

    The time of day is sometimes represented as a decimal fraction of a day in science and computers. Standard 24-hour time is converted into a fractional day by dividing the number of hours elapsed since midnight by 24 to make a decimal fraction. Thus, midnight is 0.0 day, noon is 0.5 d, etc., which can be added to any type of date, including (all ...

  6. Military time zone - Wikipedia

    en.wikipedia.org/wiki/Military_time_zone

    The Zulu time zone (Z) is equivalent to Coordinated Universal Time (UTC) and is often referred to as the military time zone. The military time zone system ensures clear communication in a concise manner, and avoids confusion when coordinating across time zones. The CCEB, representing the armed forces of Australia, Canada, New Zealand, the ...

  7. Template:Current hour in time zone - Wikipedia

    en.wikipedia.org/wiki/Template:Current_hour_in...

    This template gives the current hour in the given time zone in 24-hour format. It makes use of {{Current hour offset in time zone}} which, unless the dst parameter is used, automatically adjusts the hour according to daylight saving time (DST), if applicable. It also makes use of {{Current minute offset in time zone}}.

  8. Date-time group - Wikipedia

    en.wikipedia.org/wiki/Date-time_group

    In communications messages, a date-time group (DTG) is a set of characters, usually in a prescribed format, used to express the year, the month, the day of the month, the hour of the day, the minute of the hour, and the time zone, if different from Coordinated Universal Time (UTC).

  9. List of UTC offsets - Wikipedia

    en.wikipedia.org/wiki/List_of_UTC_offsets

    The two extreme time zones on Earth (both in the mid-Pacific) differ by 26 hours. Standard Time Zones, as of January 2, 2024 In the following list, only the rightmost indent of a group of locations is meant to indicate the area observing the offset; the places above and to the left are meant solely to indicate the area's parent administrative ...