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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: "The use of AM or PM to designate either noon or midnight can cause ambiguity. [1]

70 relations: Airplane, Amenhotep I, Ancient Egypt, Ancient Rome, Anno Domini, Astrolabe, Astronomical clock, Australia, Bangladesh, Bus, Chinese characters, CJK characters, Clock position, Danish language, Date and time representation by country, Decimal time, Dutch language, Earth's rotation, Egypt, English language, Finnish language, Full stop, German Americans, Greek language, Hungarian language, India, ISO 8601, Italy, Latin, Letter case, Linux, MacOS, Malaysia, Mesopotamia, Mexico, Microsoft Windows, Midnight, Midwestern United States, Muhurta, National Institute of Information and Communications Technology, National Institute of Standards and Technology, Noon, Northern Europe, Numbering scheme, Pahar, Pakistan, Periods., Philippines, Roman numerals, Russian language, ..., Sinhalese language, Six-hour clock, Slavic languages, Small caps, Social dance, Spanish language, Style guide, Sundial, Swedish language, The American Heritage Dictionary of the English Language, The Canadian Press, Train, United Kingdom, United States, United States Government Publishing Office, Unix-like, Water clock, Wells Cathedral clock, 24-hour analog dial, 24-hour clock. Expand index (20 more) »


An airplane or aeroplane (informally plane) is a powered, 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 from Ancient Egyptian "jmn-ḥtp" or "yamānuḥātap" meaning "Amun is satisfied" or Amenophis I,, from Ancient Greek Ἀμένωφις,Dodson & Hilton (2004) p.126 additionally King Zeserkere (transliteration: Ḏśr-k-R), was the second Pharaoh of the 18th dynasty of Egypt.

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Ancient Egypt

Ancient Egypt was a civilization of ancient Northeastern Africa, concentrated along the lower reaches of the Nile River - geographically Lower Egypt and Upper Egypt, in the place that is now occupied by the countries of Egypt and Sudan.

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Ancient Rome

In historiography, ancient Rome is Roman civilization from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD, encompassing the Roman Kingdom, Roman Republic and Roman Empire until the fall of the western empire.

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Anno Domini

The terms anno Domini (AD) and before Christ (BC) are used to label or number years in the Julian and Gregorian calendars.

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An astrolabe (ἀστρολάβος astrolabos; ٱلأَسْطُرلاب al-Asturlāb; اَختِرِیاب Akhteriab) is an elaborate inclinometer, historically used by astronomers and navigators to measure the inclined position in the sky of a celestial body, day or night.

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Astronomical clock

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

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Bangladesh (বাংলাদেশ, lit. "The country of Bengal"), officially the People's Republic of Bangladesh (গণপ্রজাতন্ত্রী বাংলাদেশ), is a country in South Asia.

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A bus (archaically also omnibus, multibus, motorbus, autobus) is a road vehicle designed to carry many passengers.

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Chinese characters

Chinese characters are logograms primarily used in the writing of Chinese and Japanese.

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CJK characters

In internationalization, CJK is a collective term for the Chinese, Japanese, and Korean languages, all of which include Chinese characters and derivatives (collectively, CJK characters) in their writing systems.

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Clock position

A clock position is the relative direction of an object described using the analogy of a 12-hour clock to describe angles and directions.

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Danish language

Danish (dansk, dansk sprog) is a North Germanic language spoken by around six million people, principally in Denmark and in the region of Southern Schleswig in northern Germany, where it has minority language status.

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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.

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Decimal time

Decimal time is the representation of the time of day using units which are decimally related.

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Dutch language

The Dutch language is a West Germanic language, spoken by around 23 million people as a first language (including the population of the Netherlands where it is the official language, and about sixty percent of Belgium where it is one of the three official languages) and by another 5 million as a second language.

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Earth's rotation

Earth's rotation is the rotation of Planet Earth around its own axis.

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Egypt (مِصر, مَصر, Khēmi), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia by a land bridge formed by the Sinai Peninsula.

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English language

English is a West Germanic language that was first spoken in early medieval England and is now a global lingua franca.

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Finnish language

Finnish (or suomen kieli) is a Finnic language spoken by the majority of the population in Finland and by ethnic Finns outside Finland.

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Full stop

The full point or full stop (British and broader Commonwealth English) or period (North American English) is a punctuation mark.

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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 (Modern Greek: ελληνικά, elliniká, "Greek", ελληνική γλώσσα, ellinikí glóssa, "Greek language") is an independent branch of the Indo-European family of languages, native to Greece and other parts of the Eastern Mediterranean and the Black Sea.

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Hungarian language

Hungarian is a Finno-Ugric language spoken in Hungary and several neighbouring countries. It is the official language of Hungary and one of the 24 official languages of the European Union. Outside Hungary it is also spoken by communities of Hungarians in the countries that today make up Slovakia, western Ukraine, central and western Romania (Transylvania and Partium), northern Serbia (Vojvodina), northern Croatia, and northern Slovenia due to the effects of the Treaty of Trianon, which resulted in many ethnic Hungarians being displaced from their homes and communities in the former territories of the Austro-Hungarian Empire. It is also spoken by Hungarian diaspora communities worldwide, especially in North America (particularly the United States). Like Finnish and Estonian, Hungarian belongs to the Uralic language family branch, its closest relatives being Mansi and Khanty.

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India (IAST), also called the Republic of India (IAST), is a country in South Asia.

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ISO 8601

ISO 8601 Data elements and interchange formats – Information interchange – Representation of dates and times is an international standard covering the exchange of date- and time-related data.

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Italy (Italia), officially the Italian Republic (Repubblica Italiana), is a sovereign state in Europe.

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Latin (Latin: lingua latīna) is a classical language belonging to the Italic branch of the Indo-European languages.

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Letter case

Letter case (or just case) is the distinction between the letters that are in larger upper case (also uppercase, capital letters, capitals, caps, large letters, or more formally majuscule) and smaller lower case (also lowercase, small letters, or more formally minuscule) in the written representation of certain languages.

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Linux is a family of free and open-source software operating systems built around the Linux kernel.

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macOS (previously and later) is a series of graphical operating systems developed and marketed by Apple Inc. since 2001.

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Malaysia is a federal constitutional monarchy in Southeast Asia.

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Mesopotamia is a historical region in West Asia situated within the Tigris–Euphrates river system, in modern days roughly corresponding to most of Iraq, Kuwait, parts of Northern Saudi Arabia, the eastern parts of Syria, Southeastern Turkey, and regions along the Turkish–Syrian and Iran–Iraq borders.

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Mexico (México; Mēxihco), officially called the United Mexican States (Estados Unidos Mexicanos) is a federal republic in the southern portion of North America.

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Microsoft Windows

Microsoft Windows is a group of several graphical operating system families, all of which are developed, marketed, and sold by Microsoft.

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Midnight is the transition time from one day to the next – the moment when the date changes.

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Midwestern United States

The Midwestern United States, also referred to as the American Midwest, Middle West, or simply the Midwest, is one of four census regions of the United States Census Bureau (also known as "Region 2").

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Muhūrt (मुहूर्त) is a Hindu unit of measurement for time in the Hindu calendar.

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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 one of the oldest physical science laboratories in the United States.

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Noon (also midday or noon time) is 12 o'clock in the daytime, as opposed to midnight.

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Northern Europe

Northern Europe is the general term for the geographical region in Europe that is approximately north of the southern coast of the Baltic Sea.

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Numbering scheme

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

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

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Pakistan (پاکِستان), officially the Islamic Republic of Pakistan (اِسلامی جمہوریہ پاکِستان), is a country in South Asia.

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Periods. is a comedy film series and collective created by Victor Quinaz and Anna Martemucci.

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The Philippines (Pilipinas or Filipinas), officially the Republic of the Philippines (Republika ng Pilipinas), is a unitary sovereign and archipelagic country in Southeast Asia.

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Roman numerals

The numeric system represented by Roman numerals originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages.

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Russian language

Russian (rússkiy yazýk) is an East Slavic language, which is official in Russia, Belarus, Kazakhstan and Kyrgyzstan, as well as being widely spoken throughout Eastern Europe, the Baltic states, the Caucasus and Central Asia.

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Sinhalese language

Sinhalese, known natively as Sinhala (සිංහල; siṁhala), is the native language of the Sinhalese people, who make up the largest ethnic group in Sri Lanka, numbering about 16 million.

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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.

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Slavic languages

The Slavic languages (also called Slavonic languages) are the Indo-European languages spoken by the Slavic peoples.

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Small caps

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

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Social dance

Social dance is that category of dances that have a social function and context.

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Spanish language

Spanish or Castilian, is a Western Romance language that originated in the Castile region of Spain and today has hundreds of millions of native speakers in Latin America and Spain.

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Style guide

A style guide (or manual of style) is a set of standards for the writing and design of documents, either for general use or for a specific publication, organization, or field.

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A sundial is a device that tells the time of day when there is sunlight by the apparent position of the Sun in the sky.

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Swedish language

Swedish is a North Germanic language spoken natively by 9.6 million people, predominantly in Sweden (as the sole official language), and in parts of Finland, where it has equal legal standing with Finnish.

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The American Heritage Dictionary of the English Language

The American Heritage Dictionary of the English Language (AHD) is an American dictionary of English published by Boston publisher Houghton Mifflin, the first edition of which appeared in 1969.

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The Canadian Press

The Canadian Press (CP; La Presse Canadienne) is a national news agency headquartered in Toronto, Canada.

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A train is a form of transport consisting of a series of connected vehicles that generally runs along a rail track to transport cargo or passengers.

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United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain,Usage is mixed with some organisations, including the and preferring to use Britain as shorthand for Great Britain is a sovereign country in western Europe.

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United States

The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.

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United States Government Publishing Office

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

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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, while 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 (Greek κλεψύδρα from κλέπτειν kleptein, 'to steal'; ὕδωρ hydor, 'water') is any timepiece in which time is measured by the regulated flow of liquid into (inflow type) or out from (outflow type) a vessel where the amount is then measured.

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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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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 24-hour clock is the convention of time keeping in which the day runs from midnight to midnight and is divided into 24 hours, indicated by the hours passed since midnight, from 0 to 23.

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

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