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39-649: Midnight Hour may refer to: The midnight hour , the transition time from one day to the next The Midnight Hour , 1985 comedy/horror TV movie The Midnite Hour , a 1992 album by Jamie Principle "The Midnight Hour", 1952 Ray Charles song (Atlantic single) "Midnight Hour", 2010 song by Reflection Eternal, single from Revolutions per Minute "Midnight Hour", song on C. C. Catch album Hear What I Say "Midnight Hour" (Skrillex, Boys Noize and Ty Dolla Sign song) , 2019 Midnight Hour (EP) , by Alesso and Liam Payne, 2020 See also [ edit ] " In

78-405: A 12-hour clock : daylight was divided into 12 equal hours (thus hours having varying length throughout the year) and the night was divided into four watches. The first mechanical clocks in the 14th century, if they had dials at all, showed all 24 hours using the 24-hour analog dial , influenced by astronomers' familiarity with the astrolabe and sundial and by their desire to model

117-527: A calendar day forms the fundamental basis as to why each day is split into two cycles. Originally there were two cycles: one cycle which could be tracked by the position of the Sun (day), followed by one cycle which could be tracked by the Moon and stars (night). This eventually evolved into the two 12-hour periods which are used today, one called "a.m." starting at midnight and another called "p.m." starting at noon. Noon itself

156-441: A colon, others use a period (full stop), and still others use the letter h. (In some usages, particularly " military time ", of the 24-hour clock , there is no separator between hours and minutes. This style is not generally seen when the 12-hour clock is used.) Unicode specifies codepoints for "a.m." and "p.m." symbols, which are intended to be used only with Chinese-Japanese-Korean (CJK) character sets, as they take up exactly

195-525: A diagram in which 12 a.m. means noon and 12 p.m. means midnight. Historically, the style manual of the United States Government Printing Office used 12 a.m. for noon and 12 p.m. for midnight until its 2008 edition. At this point it reversed these designations and then retained that change in its 2016 revision. Many U.S. style guides, and NIST 's "Frequently asked questions (FAQ)" web page, recommend that it

234-586: A vague time of day, a speaker might say the phrase "seven-thirty, eight" to mean sometime around 7:30 or 8:00. Such phrasing can be misinterpreted for a specific time of day (here 7:38), especially by a listener not expecting an estimation. The phrase " about seven-thirty or eight" clarifies this. Some more ambiguous phrasing might be avoided. Within five minutes of the hour, the phrase "five of seven" (6:55) can be heard "five-oh-seven" (5:07). "Five to seven" or even "six fifty-five" clarifies this. Minutes may be expressed as an exact number of minutes past

273-565: Is clearest if one refers to "noon" or "12:00 noon" and "midnight" or "12:00 midnight" (rather than to "12:00 p.m." and "12:00 a.m."). The NIST website states that "12 a.m. and 12 p.m. are ambiguous and should not be used." The Associated Press Stylebook specifies that midnight "is part of the day that is ending, not the one that is beginning." The Canadian Press Stylebook says, "write noon or midnight , not 12 noon or 12 midnight ." Phrases such as "12 a.m." and "12 p.m." are not mentioned at all. In

312-570: Is neither before nor after noon, and midnight is exactly twelve hours before and after noon, neither abbreviation is correct. However, many digital representations of time are configured to require an "a.m." or "p.m." designation, preventing the correct absence of such designators at midnight. In such cases, there is no international standard defining which arbitrary selection is best. In the United States and Canada, digital clocks and computers commonly display 12 a.m. at midnight. The 30th edition of

351-456: Is not always clear what times "12:00 a.m." and "12:00 p.m." denote. 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. Since "noon" (midday, meridies (m.)) is neither before nor after itself, the terms a.m. and p.m. do not apply. Although "12 m."

390-418: Is often called a quarter hour , and thirty minutes is often known as a half hour . For example, 5:15 can be phrased "(a) quarter past five" or "five-fifteen"; 5:30 can be "half past five", "five-thirty" or simply "half five". The time 8:45 may be spoken as "eight forty-five" or "(a) quarter to nine". In older English, it was common for the number 25 to be expressed as "five-and-twenty". In this way

429-474: Is rarely abbreviated in either of these languages, noon normally being written in full. In Portuguese, there are two official options and many others used, for example, using 21:45, 21h45 or 21h45min (official ones) or 21:45 or 9:45 p.m. In Irish , a.m. and i.n. are used, standing for ar maidin ("in the morning") and iarnóin ("afternoon") respectively. Most other languages lack formal abbreviations for "before noon" and "after noon", and their users use

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468-426: Is rarely abbreviated today; but if it is, it is denoted "m." The 12-hour clock can be traced back as far as Mesopotamia and ancient Egypt . Both an Egyptian sundial for daytime use and an Egyptian water clock for night-time use were found in the tomb of Pharaoh Amenhotep I . Dating to c.  1500 BC , these clocks divided their respective times of use into 12 hours each. The Romans also used

507-547: Is scheduled to begin at "9:00", it may begin at 9:00 p.m. The terms "a.m." and "p.m." are abbreviations of the Latin ante meridiem (before midday) and post meridiem (after midday). Depending on the style guide referenced, the abbreviations "a.m." and "p.m." are variously written in small capitals (" am " and " pm "), uppercase letters without a period ("AM" and "PM"), uppercase letters with periods, or lowercase letters ("am" and "pm" or "a.m." and "p.m." ). With

546-581: The Earth's apparent motion around the Sun . In Northern Europe these dials generally used the 12-hour numbering scheme in Roman numerals but showed both a.m. and p.m. periods in sequence. This is known as the double-XII system and can be seen on many surviving clock faces, such as those at Wells and Exeter . Elsewhere in Europe, numbering was more likely to be based on the 24-hour system (I to XXIV). The 12-hour clock

585-476: The U.S. Government Style Manual (2008) , in sections 9.54 and 12.9b, recommended the use of "12 a.m." for midnight and "12 p.m." for noon. However, the previous 29th edition of the U.S. Government Printing Office Style Manual (2000) , in section 12.9, recommended the opposite. There is no further record documenting this change. The US National Institute of Standards and Technology (NIST) recommends avoiding confusion altogether by using "11:59 pm" or "12:01 am" and

624-557: The second millennium BC and reached its modern form in the 16th century. The 12-hour time convention is common in several English-speaking nations and former British colonies , as well as a few other countries. There is no widely accepted convention for how midday and midnight should be represented: in English-speaking countries, "12 p.m." indicates 12 o'clock noon, while "12 a.m." means 12 o'clock midnight. (00:00) The natural day-and-night division of

663-403: The 12-hour clock only orally and informally. However, in many languages, such as Russian and Hebrew, informal designations are used, such as "9 in the morning" or "3 in the night". When abbreviations and phrases are omitted, one may rely on sentence context and societal norms to reduce ambiguity. For example, if one commutes to work at "9:00", 9:00 a.m. may be implied, but if a social dance

702-561: The 24-hour clock is preferred. In several countries the 12-hour clock is the dominant written and spoken system of time, predominantly in nations that were part of the former British Empire, for example, the United Kingdom , Republic of Ireland , the United States , Canada ( excluding Quebec ), Australia , New Zealand , South Africa , India , Pakistan , and Bangladesh , and others follow this convention as well, such as Mexico and

741-566: The Midnight Hour ", 1965 Wilson Pickett song and soul standard In the Mid-Nite Hour , 2005 Warren G album "In the Midnight Hour" ( Grey's Anatomy ) , a 2008 episode of Grey's Anatomy This Midnight Hour , a composition by Anna Clyne Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Midnight Hour . If an internal link led you here, you may wish to change

780-404: The Sun is closest to the nadir , and the night is equidistant from sunset and sunrise . Due to the advent of time zones , which regularize time across a range of meridians , and daylight saving time , solar midnight rarely coincides with 12 midnight on the clock. Solar midnight depends on longitude and time of the year rather than on time zone . In ancient Roman timekeeping , midnight

819-560: The UK, the National Physical Laboratory "FAQ-Time" web page states "In cases where the context cannot be relied upon to place a particular event, the pair of days straddling midnight can be quoted"; also "the terms 12 a.m. and 12 p.m. should be avoided." Likewise, some U.S. style guides recommend either clarifying "midnight" with other context clues, such as specifying the two dates between which it falls, or not referring to

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858-462: The advent of computer generated and printed schedules, especially airlines, advertising, and television promotions, the "M" character is often omitted as providing no additional information as in "9:30A" or "10:00P". Some style guides suggest the use of a space between the number and the a.m. or p.m. abbreviation. Style guides recommend not using a.m. and p.m. without a time preceding it. The hour/minute separator varies between countries : some use

897-602: The beginning and ending of each day in civil time throughout the world. As the dividing point between one day and another, midnight defies easy classification as either part of the preceding day or of the following day. 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. Strictly speaking, it is incorrect to use " a.m. " and " p.m. " when referring to noon or midnight. The abbreviation a.m. stands for ante meridiem or before noon , and p.m. stands for post meridiem or after noon . Since noon

936-503: The former American colony of the Philippines . Even in those countries where the 12-hour clock is predominant, there are frequently contexts (such as science, medicine, the military or transport) in which the 24-hour clock is preferred. In most countries, however, the 24-hour clock is the standard system used, especially in writing. Some nations in Europe and Latin America use a combination of

975-417: The hour specifying the time of day (e.g., 6:32 p.m. is "six thirty-two"). Additionally, when expressing the time using the "past (after)" or "to (before)" formula, it is conventional to choose the number of minutes below 30 (e.g., 6:32 p.m. is conventionally "twenty-eight minutes to seven" rather than "thirty-two minutes past six"). In spoken English, full hours are often represented by

1014-625: The intended date instead of "midnight" or "12:00 am". There are several common approaches to identifying and distinguishing the precise start and end of any given day. 12-hour clock#Abbreviations 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"). Each period consists of 12 hours numbered: 12 (acting as 0), 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11. The 12-hour clock has been developed since

1053-434: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Midnight_Hour&oldid=1251681898 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages The midnight hour Solar midnight is the time opposite to solar noon , when

1092-448: The midnight departure one or more minutes, such as to 11:59 p.m. or 12:01 a.m. In Japanese usage , midnight is written as 午前0時 (0 a.m.) and noon is written as 午後0時 (0 p.m.), making the hours numbered sequentially from 0 to 11 in both halves of the day. Alternatively, noon may be written as 午前12時 (12 a.m.) and midnight at the end of the day as 午後12時 (12 p.m.), as opposed to 午前0時 (0 a.m.) for

1131-767: The numbered hour followed by o'clock (10:00 as ten o'clock , 2:00 as two o'clock ). This may be followed by the "a.m." or "p.m." designator, though some phrases such as in the morning, in the afternoon, in the evening, or at night more commonly follow analog-style terms such as o'clock, half past three, and quarter to four. O'clock itself may be omitted, telling a time as four a.m. or four p.m. Minutes ":01" to ":09" are usually pronounced as oh one to oh nine ( nought or zero can also be used instead of oh ). Minutes ":10" to ":59" are pronounced as their usual number-words. For instance, 6:02 a.m. can be pronounced six oh two a.m. whereas 6:32 a.m. could be told as six thirty-two a.m. . It

1170-652: The pattern choices of many Germanic and Slavic languages , including Serbo-Croatian , Dutch , Danish , Russian , and Swedish , as well as Hungarian , Finnish , and the languages of the Baltic States . Moreover, in situations where the relevant hour is obvious or has been recently mentioned, a speaker might omit the hour and just say "quarter to (the hour)", "half past" or "ten 'til" to avoid an elaborate sentence in informal conversations. These forms are often commonly used in television and radio broadcasts that cover multiple time zones at one-hour intervals. In describing

1209-470: The same space as one CJK character: In speaking, it is common to round the time to the nearest five minutes and/or express the time as the past (or to) the closest hour; for example, "five past five" (5:05). Minutes past the hour means those minutes are added to the hour; "ten past five" means 5:10. Minutes to, 'til and of the hour mean those minutes are subtracted; "ten of five", "ten 'til five", and "ten to five" all mean 4:50. Fifteen minutes

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1248-448: The shorter hour hand rotates once every 12 hours and twice in one day. Some analog clock dials have an inner ring of numbers along with the standard 1-to-12 numbered ring. The number 12 is paired either with a 00 or a 24, while the numbers 1 through 11 are paired with the numbers 13 through 23, respectively. This modification allows the clock to also be read in 24-hour notation . This kind of 12-hour clock can be found in countries where

1287-426: The term at all. 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. That has become common in the United States in legal contracts and for airplane , bus , or train schedules, though some schedules use other conventions. Occasionally, when trains run at regular intervals, the pattern may be broken at midnight by displacing

1326-1096: The terms a.m. and p.m. are seldom used and often unknown. In most countries, computers by default show the time in 24-hour notation. Most operating systems, including Microsoft Windows and Unix-like systems such as Linux and macOS , activate the 12-hour notation by default for a limited number of language and region settings. This behaviour can be changed by the user, such as with the Windows operating system's "Region and Language" settings. The Latin abbreviations a.m. and p.m. (often written "am" and "pm", "AM" and "PM", or "A.M." and "P.M.") are used in English and Spanish . The equivalents in Greek are π.μ. and μ.μ. , respectively, and in Sinhala පෙ.ව. ( pe.va. ) for පෙරවරු ( peravaru , පෙර pera – fore, pre) and ප.ව. ( pa.va. ) for පස්වරු ( pasvaru , පස්සේ passē  – after, post). However, noon

1365-472: The time 8:35 may be phrased as "five-and-twenty to 9", although this styling fell out of fashion in the later part of the 1900s and is now rarely used. Instead of meaning 5:30, the "half five" expression is sometimes used to mean 4:30, or "halfway to five", especially for regions such as the American Midwest and other areas that have been particularly influenced by German culture . This meaning follows

1404-525: The two, preferring the 12-hour system in colloquial speech but using the 24-hour system in written form and in formal contexts. The 12-hour clock in speech often uses phrases such as ... in the morning , ... in the afternoon , ... in the evening , and ... at night . Rider's British Merlin almanac for 1795 and a similar almanac for 1773 published in London used them. Other than in English-speaking countries and some Spanish-speaking countries,

1443-451: Was halfway between dusk and dawn (i.e., solar midnight), varying according to the seasons . In some Slavic languages , "midnight" has an additional geographic association with " north " (as " noon " does with " south "). Modern Polish , Belarusian , Ukrainian , and Serbian languages preserve this association with their words for "midnight" or "half-night" ( północ , поўнач , північ , пoнoħ ) also meaning "north". Midnight marks

1482-489: Was suggested as a way to indicate noon, this is seldom done and also does not resolve the question of how to indicate midnight. 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 ". E. G. Richards in his book Mapping Time (1999) provided

1521-454: Was used throughout the British empire. During the 15th and 16th centuries, the 12-hour analog dial and time system gradually became established as standard throughout Northern Europe for general public use. The 24-hour analog dial was reserved for more specialized applications, such as astronomical clocks and chronometers. Most analog clocks and watches today use the 12-hour dial, on which

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