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The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. (from Latin ante meridiem, translating to "before midday") and p.m. (from Latin post meridiem, translating to "after midday"). [1] [2] Each period consists of 12 hours numbered: 12 (acting as 0), [3] 1, 2, 3, 4
[12] Date Time Group format, used most often in operation orders. This format uses DDHHMMZMONYY, with DD being the two-digit day, HHMM being the time on a 24-hour clock, Z being the timezone code, MON being the three-letter month, and YY being the two-digit year. For example, 041200ZFEB23 is noon, UTC, on 4 Feb 2023. [13]
An actual 24 hour clock is going to display either 00:00:00 at midnight or 24:00:00 at midnight but NOT both simultaneously. It is in this respect subject to the same limitation as a 12 hour clock, which could not display both 12:00:00 and 00:00:00 at the same time, were the zero hundred hours time conventional with 12 hour clocks.
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 ...
This page was last edited on 27 April 2020, at 06:54 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Returns the hour in 12-hours format for the hour in 24-hour format (between 0 and 24) in parameter: 00 (midnight at start of day) is normally 12 AM for the whole morning hour between 00:00 and 00:59. 01..11 (end of night and morning) is unambiguously 01..11 AM. 12 (noon) is normally 12 PM for the whole afternoon hour between 12:00 and 12:59.
This can be changed by setting an offset. For an integer number of hours use parameter 1. Otherwise use offset. The current UTC time is 4:50 pm on 1 December 2024 (use {{12-hour time}}) The current time in city Saskatoon is 9:50 am on 1 December 2024 (use {{12-hour time|-7}}) The current time in Darwin is 2:20 am on 2 December 2024 (use {{12 ...
12 hours for daytime and 12 hours for nightime come from the Eqyptians who divided the night and day in that manner. The reason for a base 60 numbering system in Sumeria/Babylonia is unknown, but it was actually a base 6×10 numbering system, so there was a kind of base 10 system within it (see Babylonian numerals). Sumeria/Babylonia never used ...