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  2. 12-hour clock - Wikipedia

    en.wikipedia.org/wiki/12-hour_clock

    The American Heritage Dictionary of the English Language states "By convention, 12 AM denotes midnight and 12 PM denotes noon. Because of the potential for confusion, it is advisable to use 12 noon and 12 midnight". [35] E. G. Richards in his book Mapping Time (1999) provided a diagram in which 12 a.m. means noon and 12 p.m. means midnight. [36]

  3. Date and time notation in Asia - Wikipedia

    en.wikipedia.org/wiki/Date_and_time_notation_in_Asia

    If the minutes of a given time are less than ten, the preceding zero (零; líng) is included in speech. The time 08:05 would be read as bādiǎn língwǔfēn; 'eight hours zero-five minutes', similar to how English speakers would describe the same time as "eight oh-five". Both the 12-hour and 24-hour notations are used in spoken and written ...

  4. Traditional Chinese timekeeping - Wikipedia

    en.wikipedia.org/wiki/Traditional_Chinese...

    Since then, kè has been used as shorthand to talk about time in 1 ⁄ 8 of a double hour or 1 ⁄ 4 of a single hour. Their usage is similar to using "quarter hour" for 15 minutes or "half an hour" for 30 minutes in English. For example, 6:45 can be written as "6 diǎn, 3 kè" (六点 三 刻; 六點 三 刻). Miǎo is now the standard term ...

  5. 24-hour clock - Wikipedia

    en.wikipedia.org/wiki/24-hour_clock

    In American English, the term military time is a synonym for the 24-hour clock. [8] In the US, the time of day is customarily given almost exclusively using the 12-hour clock notation, which counts the hours of the day as 12, 1, ..., 11 with suffixes a.m. and p.m. distinguishing the two diurnal repetitions of this sequence.

  6. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    The svedberg is a time unit used for sedimentation rates (usually of proteins). It is defined as 10 −13 seconds (100 fs). The TU (for time unit) is a unit of time defined as 1024 μs for use in engineering. The galactic year, based on the rotation of the galaxy and usually measured in million years. [2]

  7. ISO 8601 - Wikipedia

    en.wikipedia.org/wiki/ISO_8601

    A time interval is the intervening time between two time points. The amount of intervening time is expressed by a duration (as described in the previous section). The two time points (start and end) are expressed by either a combined date and time representation or just a date representation. There are four ways to express a time interval:

  8. Date and time notation in the United Kingdom - Wikipedia

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

    20fed Mai 1999 or 20 fed Mai 1999 (The suffix indicates an ordinal number, like "th" in English.) The month–day–year order (for example "Mai 20, 1999") was previously more common: it is usual to see a Welsh month–day–year date next to an English day–month–year date on a bilingual plaque from the latter half of the 20th century.

  9. 2 P.M. - Wikipedia

    en.wikipedia.org/wiki/2_P.M.

    2 P.M. or 2PM may refer to: The time 2:00 p.m. as represented on the 12-hour clock; 2PM, a South Korean boy band; Still 2:00PM, an EP by 2PM; The RT-2PM Topol, a mobile intercontinental ballistic missile in Russia; 2PM, a radio station based in Port Macquarie, NSW, Australia, currently owned by Broadcast Operations Group