12 am means midnight or noon?
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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."
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12:00 a.m. is usually referred to as both 0000 and 2400 hours. Clocks which can display Military Time, however, always display this time of day as 0000 (and not as 2400). Military Time can only be shown on digital clocks like the Military Time Clock shown on OnlineClock.net.
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Here's the whole list: Midnight (12:00 a.m.) — 0000 hrs. 1:00 a.m. — 0100 hrs.
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Technically, it is correct only to call it 12:00 noon. Summarizing what others have written, the half-way point of the day, known as the meridian, is 12 o'clock noon.
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The first 12-hour period is designated as am. It runs from midnight to noon. The second period, marked pm, covers the 12 hours from noon to midnight. The abbreviations am and pm derive from Latin: AM = Ante meridiem: Before noon.
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E. G. Richards in his book Mapping Time provided a diagram in which 12 a.m. means noon and 12 p.m. means midnight. ... For an example of the latter method, "midnight" is replaced with "11:59 p.m." for the end of a day or "12:01 a.m." for the start of a day.
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The first 12-hour period is designated as am. It runs from midnight to noon. The second period, marked pm, covers the 12 hours from noon to midnight.
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12:52 AM using 12-hour clock notation, 00:52 using 24-hour clock notation.
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Re: 12:00 noon/nn/ pm No abbreviation for "noon" since it is a short word already probably; however, you can use 12:00 a.m. or 12:00 midnight (or just "midnight") and 12:00 p.m. or 12:00 noon (or just "noon"). Of course, one can always go with 24 hour military time: 1200 = noon and 2400 = midnight. Bertha.
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Therefore, afternoon is from 12:01 pm to 5:59 pm. Evening is from 6:00 pm until midnight. ”The word "afternoon", which derives from "after" and "noon", has been attested from about the year 1300; Middle English contained both "afternoon" and the synonym "aftermete".
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Noon (or midday) is 12 o'clock in the daytime, as opposed to midnight. It is written as 12 noon, 12 p.m. (for post meridiem) or 12 pm. Solar noon is the time when the Sun appears to contact the local celestial meridian.
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Converting from 24 hour to 12 hour clock 0:30 = 12:30 AM. 0:55 = 12:55 AM.
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Midday and midnight conventions There are no standards established for the meaning of 12am and 12pm. It is often said that 12am Monday is midnight on Monday morning and 12pm is midday.
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12 A.M. is often referred to as both 0000 and 2400 hours. However, Clocks that display Military Time always display it as 0000.
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From the Latin words meridies (midday), ante (before) and post (after), the term ante meridiem (a.m.) means before midday and post meridiem (p.m.) means after midday. ... The American Heritage Dictionary of the English Language states "By convention, 12 AM denotes midnight and 12 PM denotes noon.
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Though there is no global unanimity on the issue, most often midnight is considered the start of a new day and is associated with the hour 00:00. ... Since noon is neither before nor after noon, and midnight is exactly twelve hours before and after noon, neither abbreviation is correct.
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From 0:00 (midnight) to 0:59, add 12 hours and use am. From 1:00 to 11:59, just add am after the time. From 12:00 to 12:59, just add pm after the time. From 13:00 to 0:00, subtract 12 hours and use pm.