AMAM

Product Information

Richards, E. G. (1999). Mapping Time: the Calendar and its History. Oxford University Press. p.289. In older English, it was common for the number 25 to be expressed as "five-and-twenty". [18] In this way the time 8:35 may be phrased as "five-and-twenty to 9", [19] although this styling fell out of fashion in the later part of the 1900s and is now rarely used. [20] It is not always clear what times "12:00a.m." and "12:00p.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. [2] Although "12m." was suggested as a way to indicate noon, this is seldom done [27] and also does not resolve the question of how to indicate midnight. Fifteen minutes 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". [17] Some style guides suggest the use of a space between the number and the a.m. or p.m. abbreviation. [ citation needed] Style guides recommend not using a.m. and p.m. without a time preceding it. [15]

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"), [ citation needed] uppercase letters without a period ("AM" and "PM"), uppercase letters with periods, or lowercase letters ("am" and "pm" or, [13] "a.m." and "p.m."). [ citation needed] With 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". [14] quarter". American Heritage Dictionary (3rded.). Boston: Houghton Mifflin. 1992. s.v. usage note at end of "quarter" entry. The American Heritage Dictionary of the English Language states "By convention, 12AM denotes midnight and 12PM denotes noon. Because of the potential for confusion, it is advisable to use 12 noon and 12 midnight." [31] a b Paula Froke, Anna Joe Bratton, Oskar Garcia, Jeff McMillan & Jerry Schwart, Eds., 54th ed., The Associated Press Stylebook and Briefing on Media Law, New York: Basic Books, June 2019, ISBN 978-1-5416-9989-2, s.v. noon, midnight, times.Instead of meaning 5:30, the "half five" expression is sometimes used to mean 4:30, or "half-way to five", especially for regions such as the American Midwest and other areas that have been particularly influenced by German culture. This meaning follows the pattern choices of many Germanic and Slavic languages, including Serbo-Croatian, Dutch, Danish, Russian and Swedish, as well as Hungarian and Finnish. In Japanese usage, midnight is written as 午前0時 (0:00a.m.) and noon is written as 午後0時 (0:00p.m.), making the hours numbered sequentially from 0 to 11 in both halves of the day. Berlin instruments of the old Eg.time of day destination". members.aon.at. Archived from the original on 15 November 2006 . Retrieved 13 June 2006. GPO Style Manual. 2016. p.236". govinfo.gov. 12 January 2017. Archived from the original on 17 March 2018 . Retrieved 16 March 2018.

The abbreviation 'AM' stands for Ante Meridiem, which means it is the time before the meridian line has crossed the Sun, or, the time between midnight and 11.59 in the morning. PM stands for Post-Meridiem, which means it is the time after the meridian line has crossed the Sun, or, the time between noon and 11.59 at night. Time". Encyclopædia Britannica. Encyclopædia Britannica Online Library Edition . Retrieved 20 November 2013. The use of AM or PM to designate either noon or midnight can cause ambiguity. (subscription required) For different opinions on representation of midday and midnight, see #Confusion at noon and midnight United States Government Printing Office Style Manual" (PDF). govinfo. U.S. Government Publishing Office. January 1953. pp.152, 267. Archived (PDF) from the original on 5 September 2019 . Retrieved 5 September 2019. Minutes may be expressed as an exact number of minutes past the hour specifying the time of day (e.g., 6:32p.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., 6:32p.m. is conventionally "twenty-eight minutes to seven" rather than "thirty-two minutes past six").

What Day is Midnight?

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", 9:00a.m. may be implied, but if a social dance is scheduled to begin at "9:00", it may begin at 9:00p.m. U.S. Government Printing Office Style Manual - Chapter 12 - Numerals". govinfo.gov . Retrieved 27 January 2023.