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12-hour clock

Index 12-hour clock

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, translating to "before midday") and p.m. (from Latin, translating to "after midday"). [1]

Table of Contents

  1. 79 relations: Airplane, Amenhotep I, Ancient Egypt, Ancient Rome, Astrolabe, Astronomical clock, Australia, Bangladesh, Bus, Canada, CJK characters, Clock position, Crown colony, Danish language, Date and time notation in Japan, Date and time representation by country, Decimal time, Dutch language, Earth's rotation, English language, Finnish language, Full stop, German Americans, Greek language, Hungarian language, India, Irish language, Italian six-hour clock, Latin, Letter case, Linux, MacOS, Mesopotamia, Mexico, Microsoft Windows, Midnight, Midwestern United States, Muhurta, National Astronomical Observatory of Japan, National Institute of Information and Communications Technology, National Institute of Standards and Technology, National Physical Laboratory (United Kingdom), New Zealand, Noon, Northern Europe, Numbering scheme, Oxford University Press, Pahar, Pakistan, Philippines, ... Expand index (29 more) »

  2. Date and time representation
  3. Time measurement systems

Airplane

An airplane (North American English) or aeroplane (Commonwealth English), informally plane, is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, propeller, or rocket engine.

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Amenhotep I

Amenhotep I or Amenophis I (from Ancient Greek Ἀμένωφις), was the second Pharaoh of the 18th Dynasty of Egypt.

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Ancient Egypt

Ancient Egypt was a civilization of ancient Northeast Africa.

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Ancient Rome

In modern historiography, ancient Rome is the Roman civilisation from the founding of the Italian city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD.

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Astrolabe

An astrolabe (ἀστρολάβος,; ٱلأَسْطُرلاب; ستاره‌یاب) is an astronomical instrument dating to ancient times.

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Astronomical clock

An astronomical clock, horologium, or orloj is a clock with special mechanisms and dials to display astronomical information, such as the relative positions of the Sun, Moon, zodiacal constellations, and sometimes major planets.

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Australia

Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands.

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Bangladesh

Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia.

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Bus

A bus (contracted from omnibus, with variants multibus, motorbus, autobus, etc.) is a road vehicle that carries significantly more passengers than an average car or van, but less than the average rail transport.

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Canada

Canada is a country in North America.

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CJK characters

In internationalization, CJK characters is a collective term for graphemes used in the Chinese, Japanese, and Korean writing systems, which each include Chinese characters.

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Clock position

A clock position, or clock bearing, is the direction of an object observed from a vehicle, typically a vessel or an aircraft, relative to the orientation of the vehicle to the observer.

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Crown colony

A Crown colony or royal colony was a colony governed by England, and then Great Britain or the United Kingdom within the English and later British Empire.

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Danish language

Danish (dansk, dansk sprog) is a North Germanic language from the Indo-European language family spoken by about six million people, principally in and around Denmark.

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Date and time notation in Japan

Date and time notation in Japan has historically followed the Japanese calendar and the nengō system of counting years.

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Date and time representation by country

Different conventions exist around the world for date and time representation, both written and spoken. 12-hour clock and date and time representation by country are date and time representation.

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Decimal time

Decimal time is the representation of the time of day using units which are decimally related. 12-hour clock and decimal time are time measurement systems.

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Dutch language

Dutch (Nederlands.) is a West Germanic language, spoken by about 25 million people as a first language and 5 million as a second language and is the third most spoken Germanic language.

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Earth's rotation

Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space.

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English language

English is a West Germanic language in the Indo-European language family, whose speakers, called Anglophones, originated in early medieval England on the island of Great Britain.

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Finnish language

Finnish (endonym: suomi or suomen kieli) is a Finnic language of the Uralic language family, spoken by the majority of the population in Finland and by ethnic Finns outside of Finland.

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Full stop

The full stop (Commonwealth English), period (North American English), or full point is a punctuation mark used for several purposes, most often to mark the end of a declarative sentence (as distinguished from a question or exclamation).

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German Americans

German Americans (Deutschamerikaner) are Americans who have full or partial German ancestry.

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Greek language

Greek (Elliniká,; Hellēnikḗ) is an independent branch of the Indo-European family of languages, native to Greece, Cyprus, Italy (in Calabria and Salento), southern Albania, and other regions of the Balkans, the Black Sea coast, Asia Minor, and the Eastern Mediterranean.

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Hungarian language

Hungarian is a Uralic language of the proposed Ugric branch spoken in Hungary and parts of several neighbouring countries.

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India

India, officially the Republic of India (ISO), is a country in South Asia.

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Irish language

Irish (Standard Irish: Gaeilge), also known as Irish Gaelic or simply Gaelic, is a Goidelic language of the Insular Celtic branch of the Celtic language group, which is a part of the Indo-European language family.

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Italian six-hour clock

The six-hour clock (sistema orario a sei ore), also called the Roman (alla romana) or the Italian (all'italiana) system, is a system of date and time notation in Italy which was invented before the modern 24-hour clock. 12-hour clock and Italian six-hour clock are date and time representation and time measurement systems.

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Latin

Latin (lingua Latina,, or Latinum) is a classical language belonging to the Italic branch of the Indo-European languages.

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Letter case

Letter case is the distinction between the letters that are in larger uppercase or capitals (or more formally majuscule) and smaller lowercase (or more formally minuscule) in the written representation of certain languages.

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Linux

Linux is both an open-source Unix-like kernel and a generic name for a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds.

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MacOS

macOS, originally Mac OS X, previously shortened as OS X, is an operating system developed and marketed by Apple since 2001.

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Mesopotamia

Mesopotamia is a historical region of West Asia situated within the Tigris–Euphrates river system, in the northern part of the Fertile Crescent.

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Mexico

Mexico, officially the United Mexican States, is a country in the southern portion of North America.

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Microsoft Windows

Microsoft Windows is a product line of proprietary graphical operating systems developed and marketed by Microsoft.

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Midnight

Midnight is the transition time from one day to the next – the moment when the date changes, on the local official clock time for any particular jurisdiction.

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Midwestern United States

The Midwestern United States, also referred to as the Midwest or the American Midwest, is one of four census regions of the United States Census Bureau.

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Muhurta

Muhūrta (translit) is a Hindu unit of measurement for time along with nimiṣa, kāṣṭhā, and kalā in the Hindu calendar. 12-hour clock and Muhurta are time measurement systems.

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National Astronomical Observatory of Japan

The (NAOJ) is an astronomical research organisation comprising several facilities in Japan, as well as an observatory in Hawaii and Chile.

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National Institute of Information and Communications Technology

The is Japan's primary national research institute for information and communications.

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National Institute of Standards and Technology

The National Institute of Standards and Technology (NIST) is an agency of the United States Department of Commerce whose mission is to promote American innovation and industrial competitiveness.

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National Physical Laboratory (United Kingdom)

The National Physical Laboratory (NPL) is the national measurement standards laboratory of the United Kingdom.

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New Zealand

New Zealand (Aotearoa) is an island country in the southwestern Pacific Ocean.

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Noon

Noon (or midday) is 12 o'clock in the daytime.

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Northern Europe

The northern region of Europe has several definitions.

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Numbering scheme

There are many different numbering schemes for assigning nominal numbers to entities.

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Oxford University Press

Oxford University Press (OUP) is the publishing house of the University of Oxford.

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Pahar

Pahar (Bengali পহর, Hindi/Nepali: पहर, Urdu: پہر), which is more commonly pronounced peher is a traditional unit of time used in India, Pakistan, and Bangladesh.

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Pakistan

Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia.

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Philippines

The Philippines, officially the Republic of the Philippines, is an archipelagic country in Southeast Asia.

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Republic of Ireland

Ireland (Éire), also known as the Republic of Ireland (Poblacht na hÉireann), is a country in north-western Europe consisting of 26 of the 32 counties of the island of Ireland.

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Roman numerals

Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages.

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Roman timekeeping

In Roman timekeeping, a day was divided into periods according to the available technology. 12-hour clock and Roman timekeeping are time measurement systems.

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Russian language

Russian is an East Slavic language, spoken primarily in Russia.

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Serbo-Croatian

Serbo-Croatian – also called Serbo-Croat, Serbo-Croat-Bosnian (SCB), Bosnian-Croatian-Serbian (BCS), and Bosnian-Croatian-Montenegrin-Serbian (BCMS) – is a South Slavic language and the primary language of Serbia, Croatia, Bosnia and Herzegovina, and Montenegro.

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Sinhala language

Sinhala (Sinhala: සිංහල), sometimes called Sinhalese, is an Indo-Aryan language primarily spoken by the Sinhalese people of Sri Lanka, who make up the largest ethnic group on the island, numbering about 16 million.

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Slavic languages

The Slavic languages, also known as the Slavonic languages, are Indo-European languages spoken primarily by the Slavic peoples and their descendants.

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Small caps

In typography, small caps (short for small capitals) are characters typeset with glyphs that resemble uppercase letters but reduced in height and weight close to the surrounding lowercase letters or text figures.

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Social dance

Social dances are dances that have social functions and context.

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South Africa

South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa.

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Spanish language

Spanish (español) or Castilian (castellano) is a Romance language of the Indo-European language family that evolved from the Vulgar Latin spoken on the Iberian Peninsula of Europe.

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Style guide

A style guide is a set of standards for the writing, formatting, and design of documents.

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Sundial

A sundial is a horological device that tells the time of day (referred to as civil time in modern usage) when direct sunlight shines by the apparent position of the Sun in the sky.

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Swedish language

Swedish (svenska) is a North Germanic language from the Indo-European language family, spoken predominantly in Sweden and in parts of Finland.

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Thai six-hour clock

The six-hour clock is a traditional timekeeping system used in the Thai and formerly the Lao language and the Khmer language, alongside the official 24-hour clock. 12-hour clock and Thai six-hour clock are date and time representation and time measurement systems.

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The American Heritage Dictionary of the English Language

The American Heritage Dictionary of the English Language (AHD) is a dictionary of American English published by HarperCollins.

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The Canadian Press

The Canadian Press (CP; La Presse canadienne, PC) is a Canadian national news agency headquartered in Toronto, Ontario.

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The Economist

The Economist is a British weekly newspaper published in printed magazine format and digitally.

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Train

A train (from Old French trahiner, from Latin trahere, "to pull, to draw") is a series of connected vehicles that run along a railway track and transport people or freight.

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United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of the continental mainland.

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United States

The United States of America (USA or U.S.A.), commonly known as the United States (US or U.S.) or America, is a country primarily located in North America.

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United States Government Publishing Office

The United States Government Publishing Office (USGPO or GPO), formerly the United States Government Printing Office, is an agency of the legislative branch of the United States Federal government.

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Unix-like

A Unix-like (sometimes referred to as UN*X or *nix) operating system is one that behaves in a manner similar to a Unix system, although not necessarily conforming to or being certified to any version of the Single UNIX Specification.

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Water clock

A water clock or clepsydra is a timepiece by which time is measured by the regulated flow of liquid into (inflow type) or out from (outflow type) a vessel, and where the amount of liquid can then be measured. 12-hour clock and water clock are time measurement systems.

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Wells Cathedral clock

The Wells Cathedral clock is an astronomical clock in the north transept of Wells Cathedral, England.

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180th meridian

The 180th meridian or antimeridian is the meridian 180° both east and west of the prime meridian in a geographical coordinate system.

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24-hour analog dial

Clocks and watches with a 24-hour analog dial have an hour hand that makes one complete revolution, 360°, in a day (24 hours per revolution).

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24-hour clock

The modern 24-hour clock is the convention of timekeeping in which the day runs from midnight to midnight and is divided into 24 hours. 12-hour clock and 24-hour clock are date and time representation and time measurement systems.

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2nd millennium BC

The 2nd millennium BC spanned the years 2000 BC to 1001 BC.

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See also

Date and time representation

Time measurement systems

References

[1] https://en.wikipedia.org/wiki/12-hour_clock

Also known as 10 o'clock, 12 A.M, 12 Hour Clock, 12 Hour Clocks, 12 P.M, 12 P.M., 12 PM, 12 hour time, 12-Hour Notation, 12-hour, 12-hour clocks, 12-hour time, 12:00 A.M., 12:00 P.M., 12:00 PM, 12am, 12h, 12pm, 3 o'clock, 6 o'clock, 8 o'clock, AM and PM, Ante Meridiam, Ante Meridiem, Ante Meridium, Meridiem, O clock, O'clock, Oclock, Post Meridiam, Post Meridiem, Twelve hour clock, Twelve-hour clock, .

, Republic of Ireland, Roman numerals, Roman timekeeping, Russian language, Serbo-Croatian, Sinhala language, Slavic languages, Small caps, Social dance, South Africa, Spanish language, Style guide, Sundial, Swedish language, Thai six-hour clock, The American Heritage Dictionary of the English Language, The Canadian Press, The Economist, Train, United Kingdom, United States, United States Government Publishing Office, Unix-like, Water clock, Wells Cathedral clock, 180th meridian, 24-hour analog dial, 24-hour clock, 2nd millennium BC.