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German (Gallic) hours (half-dial): 2×12 hour system starting at midnight and restarted at noon. It is typical with the 12-hour dial with 12 at the top. The modern 24-hour system is a late-19th century adaptation of the German midnight-starting system, and then prevailed in the world with the exception of some Anglophone countries.
The 12 hours off-watch were further divided into the first 6 hours being used for maintenance, cleaning, and entertainment; while the second 6 hours were usually for sleeping. Note that this arrangement resulted in one of the sections having two watches in one (24-hour) day, and there were no dog watches. Also, watch reliefs occurred no later ...
Whether the 24-hour clock, 12-hour clock, or 6-hour clock is used. Whether the minutes (or fraction of an hour) after the previous hour or until the following hour is used in spoken language. The punctuation used to separate elements in all-numeric dates and times. Which days are considered the weekend.
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
This template converts a time from 24-hour to 12-hour format. It accepts one optional unnamed parameter. If the parameter is absent or neither a valid time nor number, the template returns the UTC at the time the page was generated.
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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 ...
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