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Hour

Index Hour

An hour (symbol: h; also abbreviated hr.) is a unit of time conventionally reckoned as of a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions. [1]

214 relations: Air changes per hour, Amenhotep III, Ampere hour, Ancient Egypt, Ancient Greece, Ancient Greek, Ancient Near East, Ancient Rome, Andronicus of Cyrrhus, Angelus, Anglo-Norman language, Asterism (astronomy), Astrolabe, Astronomical clock, Astronomy, Atet, Ayutthaya Kingdom, Bishopstone, East Sussex, Blue hour, Bohemia, Book of Han, Book of Sui, British Museum, British thermal unit, Cambodia, Cambridge, Cambridge, Massachusetts, Canonical hours, Catholic Church, Celestial equator, Century, Chinese language, Chinese zodiac, Chulalongkorn, Church (congregation), Church bell, Clock, Cobra, Coffin, Cognate, Compline, Coordinated Universal Time, Course (education), Course credit, Cycling, Day, Daylight saving time, Daytime, Decan, Decimal time, ..., Drivers' working hours, Drum, Duat, Dynasties in Chinese history, Earth, Earth's rotation, Earthly Branches, East Asian cultural sphere, Ecliptic, Egyptian calendar, Egyptian hieroglyphs, Eight-hour day, Electric charge, Electric power industry, Electrochemistry, Employment, Equation of time, Equatorial coordinate system, Equinox, Falstaff (opera), Fifth Dynasty of Egypt, Forum (Roman), French Indochina, French Revolution, Full-time, Giuseppe Verdi, Golden hour (photography), Gong, Greek Orthodox Church, Halakha, Han dynasty, Happy hour, Heliacal rising, Hexadecimal time, Hindu units of time, History of China, History of East Asia, History of Japan, History of Song, History of Yuan, Horae, Horologion, Horology, Horsepower-hour, Hour angle, Hour circle, Hour record, Hours of service, IERS Reference Meridian, Indoor air quality, Intercalary month (Egypt), Islam, Italy, Julian day, Jupiter, Karnak, Kilometres per hour, Kilowatt hour, Knot (unit), Labour movement, Laos, Latin, Latitude, Lauds, Leap second, Linguistic reconstruction, Loanword, Maghrib prayer, Man-hour, Marshall Clagett, Mass flow, Matins, Meridian (astronomy), Metre per hour, Metric system, Metric time, Middle Ages, Middle English, Midnight office, Miles per hour, Ming dynasty, Minute, Modern English, Month, Moon, Nautical mile, New Kingdom of Egypt, Night, Ninth Dynasty of Egypt, Non-SI units mentioned in the SI, Nones (liturgy), Noon, Old Chinese, Old English, Old French, Opera, Oxford English Dictionary, Part-time contract, Passengers per hour per direction, Pendulum, Pinyin, Poland, Pope Paul VI, Pound per hour, Prague astronomical clock, Prime (liturgy), Proto-Indo-European language, Public transport, Puranas, Pyramid Texts, Ra, Rigoletto, Root (linguistics), Rush hour, Salary, Samvatsara, Season, Second, Second Vatican Council, Sermon, Sexagesima, Sext, Shuowen Jiezi, Sidereal time, Simplified Chinese characters, Sinhalese people, Six-hour clock, Solar time, Sothic cycle, St Mark's Clock, Summer, Sundial, Sunrise, Sunset, Sussex, Tang dynasty, Terce, Thailand, Three Kingdoms, Tidal acceleration, Time, Time zone, Tower of the Winds, Traditional Chinese characters, Traditional Chinese timekeeping, Truck driver, Un ballo in maschera, Unit of measurement, Units of measurement in France, Universal Time, University of Chicago Press, Uraeus, Vedas, Vespers, Wadjet, Wage labour, Water clock, Weather, Working time, Year, Yellow Emperor, Yuan dynasty, 12-hour clock, 24-hour clock. Expand index (164 more) »

Air changes per hour

Air changes per hour, or air change rate, abbreviated ACH or ACPH, is a measure of the air volume added to or removed from a space (normally a room or house) divided by the volume of the space.

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Amenhotep III

Amenhotep III (Hellenized as Amenophis III; Egyptian Amāna-Ḥātpa; meaning Amun is Satisfied), also known as Amenhotep the Magnificent, was the ninth pharaoh of the Eighteenth Dynasty.

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Ampere hour

An ampere hour or amp hour (symbol Ah; also denoted A⋅h or A h) is a unit of electric charge, having dimensions of electric current multiplied by time, equal to the charge transferred by a steady current of one ampere flowing for one hour, or 3600 coulombs.

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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 Greece

Ancient Greece was a civilization belonging to a period of Greek history from the Greek Dark Ages of the 13th–9th centuries BC to the end of antiquity (AD 600).

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Ancient Greek

The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.

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Ancient Near East

The ancient Near East was the home of early civilizations within a region roughly corresponding to the modern Middle East: Mesopotamia (modern Iraq, southeast Turkey, southwest Iran, northeastern Syria and Kuwait), ancient Egypt, ancient Iran (Elam, Media, Parthia and Persia), Anatolia/Asia Minor and Armenian Highlands (Turkey's Eastern Anatolia Region, Armenia, northwestern Iran, southern Georgia, and western Azerbaijan), the Levant (modern Syria, Lebanon, Palestine, Israel, and Jordan), Cyprus and the Arabian Peninsula.

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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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Andronicus of Cyrrhus

Andronicus of Cyrrhus or Andronicus Cyrrhestes (Ἀνδρόνικος Κυρρήστου, Andrónikos Kyrrhēstou), son of Hermias, was a Macedonian astronomer who flourished about 100 BC.

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Angelus

The Angelus (Latin for "angel") is a Catholic devotion commemorating the Incarnation.

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Anglo-Norman language

Anglo-Norman, also known as Anglo-Norman French, is a variety of the Norman language that was used in England and, to a lesser extent, elsewhere in the British Isles during the Anglo-Norman period.

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Asterism (astronomy)

In observational astronomy, an asterism is a popular known pattern or group of stars that are recognised in the night sky.

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Astrolabe

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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Astronomy

Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.

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Atet

The Atet was the solar barge of the sun god Ra in the mythology of the ancient Egyptians.

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Ayutthaya Kingdom

The Ayutthaya Kingdom (อยุธยา,; also spelled Ayudhya or Ayodhaya) was a Siamese kingdom that existed from 1351 to 1767.

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Bishopstone, East Sussex

Bishopstone is a village with a population of about 200 people, with the nearby village of Norton, located along a dead-end road west of Seaford, East Sussex (where, at the 2011 Census, the population was included), in East Sussex, England.

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Blue hour

The blue hour (from French l'heure bleue) is a period of twilight in the morning and in the evening, during the civil and nautical twilight phases, when the sun is at a significant depth below the horizon and when the residual, indirect sunlight takes on a predominantly blue shade.

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Bohemia

Bohemia (Čechy;; Czechy; Bohême; Bohemia; Boemia) is the westernmost and largest historical region of the Czech lands in the present-day Czech Republic.

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Book of Han

The Book of Han or History of the Former Han is a history of China finished in 111, covering the Western, or Former Han dynasty from the first emperor in 206 BCE to the fall of Wang Mang in 23 CE.

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Book of Sui

The Book of Sui (Suí Shū) is the official history of the Sui dynasty.

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British Museum

The British Museum, located in the Bloomsbury area of London, United Kingdom, is a public institution dedicated to human history, art and culture.

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British thermal unit

The British thermal unit (Btu or BTU) is a traditional unit of heat; it is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

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Cambodia

Cambodia (កម្ពុជា, or Kampuchea:, Cambodge), officially known as the Kingdom of Cambodia (ព្រះរាជាណាចក្រកម្ពុជា, prĕəh riəciənaacak kampuciə,; Royaume du Cambodge), is a sovereign state located in the southern portion of the Indochina peninsula in Southeast Asia.

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Cambridge

Cambridge is a university city and the county town of Cambridgeshire, England, on the River Cam approximately north of London.

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Cambridge, Massachusetts

Cambridge is a city in Middlesex County, Massachusetts, and part of the Boston metropolitan area.

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Canonical hours

In the practice of Christianity, canonical hours mark the divisions of the day in terms of periods of fixed prayer at regular intervals.

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Catholic Church

The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with more than 1.299 billion members worldwide.

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Celestial equator

The celestial equator is the great circle of the imaginary celestial sphere on the same plane as the equator of Earth.

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Century

A century (from the Latin centum, meaning one hundred; abbreviated c.) is a period of 100 years.

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Chinese language

Chinese is a group of related, but in many cases mutually unintelligible, language varieties, forming a branch of the Sino-Tibetan language family.

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Chinese zodiac

The Chinese zodiac is a classification scheme that assigns an animal and its reputed attributes to each year in a repeating 12-year cycle.

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Chulalongkorn

Phra Bat Somdet Phra Poraminthra Maha Chulalongkorn Phra Chunla Chom Klao Chao Yu Hua (พระบาทสมเด็จพระปรมินทรมหาจุฬาลงกรณ์ พระจุลจอมเกล้าเจ้าอยู่หัว), or Rama V (20 September 1853 – 23 October 1910), was the fifth monarch of Siam under the House of Chakri.

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Church (congregation)

A church is a Christian religious organization or congregation or community that meets in a particular location.

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Church bell

A church bell in the Christian tradition is a bell which is rung in a church for a variety of church purposes, and can be heard outside the building.

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Clock

A clock is an instrument to measure, keep, and indicate time.

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Cobra

Cobra is the common name of various elapid snakes, most of which belonging to the genus Naja.

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Coffin

A coffin is a funerary box used for viewing or keeping a corpse, either for burial or cremation.

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Cognate

In linguistics, cognates are words that have a common etymological origin.

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Compline

Compline, also known as Complin, Night Prayer, or the Prayers at the End of the Day, is the final church service (or office) of the day in the Christian tradition of canonical hours.

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Coordinated Universal Time

No description.

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Course (education)

In higher education in Canada and the United States, a course is a unit of teaching that typically lasts one academic term, is led by one or more instructors (teachers or professors), and has a fixed roster of students.

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Course credit

A credit is the recognition for having taken a course at school or university, used as measure if enough hours have been made for graduation.

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Cycling

Cycling, also called bicycling or biking, is the use of bicycles for transport, recreation, exercise or sport.

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Day

A day, a unit of time, is approximately the period of time during which the Earth completes one rotation with respect to the Sun (solar day).

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Daylight saving time

Daylight saving time (abbreviated DST), sometimes referred to as daylight savings time in U.S., Canadian, and Australian speech, and known as summer time in some countries, is the practice of advancing clocks during summer months so that evening daylight lasts longer, while sacrificing normal sunrise times.

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Daytime

On Earth, daytime is roughly the period of the day during which any given point in the world experiences natural illumination from especially direct sunlight.

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Decan

The decans (Egyptian bakiu) are 36 groups of stars (small constellations) used in the Ancient Egyptian astronomy.

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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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Drivers' working hours

Drivers' working hours is the commonly used term for regulations that govern the activities of the drivers of commercial goods vehicles and passenger carrying vehicles.

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Drum

The drum is a member of the percussion group of musical instruments.

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Duat

Duat (pronounced "do-aht") (also Tuat and Tuaut or Akert, Amenthes, Amenti, or Neter-khertet) was the realm of the dead in ancient Egyptian mythology.

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Dynasties in Chinese history

The following is a chronology of the dynasties in Chinese History.

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Earth

Earth is the third planet from the Sun and the only astronomical object known to harbor life.

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Earth's rotation

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

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Earthly Branches

The Earthly Branches or Twelve Branches are an ordering system used throughout East Asia in various contexts, including its ancient dating system, astrological traditions, and zodiac.

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East Asian cultural sphere

The "Sinosphere", or "East Asian cultural sphere", refers to a grouping of countries and regions in East Asia that were historically influenced by the Chinese culture.

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Ecliptic

The ecliptic is the circular path on the celestial sphere that the Sun follows over the course of a year; it is the basis of the ecliptic coordinate system.

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Egyptian calendar

The ancient Egyptian calendar was a solar calendar with a 365-day year.

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Egyptian hieroglyphs

Egyptian hieroglyphs were the formal writing system used in Ancient Egypt.

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Eight-hour day

The eight-hour day movement or 40-hour week movement, also known as the short-time movement, was a social movement to regulate the length of a working day, preventing excesses and abuses.

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Electric charge

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.

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Electric power industry

The electric power industry covers the generation, transmission, distribution and sale of electric power to the general public and industry.

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Electrochemistry

Electrochemistry is the branch of physical chemistry that studies the relationship between electricity, as a measurable and quantitative phenomenon, and identifiable chemical change, with either electricity considered an outcome of a particular chemical change or vice versa.

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Employment

Employment is a relationship between two parties, usually based on a contract where work is paid for, where one party, which may be a corporation, for profit, not-for-profit organization, co-operative or other entity is the employer and the other is the employee.

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Equation of time

The equation of time describes the discrepancy between two kinds of solar time.

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Equatorial coordinate system

The equatorial coordinate system is a celestial coordinate system widely used to specify the positions of celestial objects.

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Equinox

An equinox is commonly regarded as the moment the plane (extended indefinitely in all directions) of Earth's equator passes through the center of the Sun, which occurs twice each year, around 20 March and 22-23 September.

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Falstaff (opera)

Falstaff is a comic opera in three acts by the Italian composer Giuseppe Verdi.

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Fifth Dynasty of Egypt

The Fifth Dynasty of ancient Egypt (notated Dynasty V) is often combined with Dynasties III, IV and VI under the group title the Old Kingdom.

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Forum (Roman)

A forum (Latin forum "public place outdoors", plural fora; English plural either fora or forums) was a public square in a Roman municipium, or any civitas, reserved primarily for the vending of goods; i.e., a marketplace, along with the buildings used for shops and the stoas used for open stalls.

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French Indochina

French Indochina (previously spelled as French Indo-China) (French: Indochine française; Lao: ສະຫະພັນອິນດູຈີນ; Khmer: សហភាពឥណ្ឌូចិន; Vietnamese: Đông Dương thuộc Pháp/東洋屬法,, frequently abbreviated to Đông Pháp; Chinese: 法属印度支那), officially known as the Indochinese Union (French: Union indochinoise) after 1887 and the Indochinese Federation (French: Fédération indochinoise) after 1947, was a grouping of French colonial territories in Southeast Asia.

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French Revolution

The French Revolution (Révolution française) was a period of far-reaching social and political upheaval in France and its colonies that lasted from 1789 until 1799.

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Full-time

Full-time employment is employment in which a person works a minimum number of hours defined as such by his/her employer.

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Giuseppe Verdi

Giuseppe Fortunino Francesco Verdi (9 or 10 October 1813 – 27 January 1901) was an Italian opera composer.

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Golden hour (photography)

Bangkok during the golden hour In photography, the golden hour is a period shortly after sunrise or before sunset during which daylight is redder and softer than when the sun is higher in the sky.

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Gong

A gong (from Malay: gong;; ra; គង - Kong; ฆ้อง Khong; cồng chiêng) is an East and Southeast Asian musical percussion instrument that takes the form of a flat, circular metal disc which is hit with a mallet.

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Greek Orthodox Church

The name Greek Orthodox Church (Greek: Ἑλληνορθόδοξη Ἑκκλησία, Ellinorthódoxi Ekklisía), or Greek Orthodoxy, is a term referring to the body of several Churches within the larger communion of Eastern Orthodox Christianity, whose liturgy is or was traditionally conducted in Koine Greek, the original language of the Septuagint and New Testament, and whose history, traditions, and theology are rooted in the early Church Fathers and the culture of the Byzantine Empire.

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Halakha

Halakha (הֲלָכָה,; also transliterated as halacha, halakhah, halachah or halocho) is the collective body of Jewish religious laws derived from the Written and Oral Torah.

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Han dynasty

The Han dynasty was the second imperial dynasty of China (206 BC–220 AD), preceded by the Qin dynasty (221–206 BC) and succeeded by the Three Kingdoms period (220–280 AD). Spanning over four centuries, the Han period is considered a golden age in Chinese history. To this day, China's majority ethnic group refers to themselves as the "Han Chinese" and the Chinese script is referred to as "Han characters". It was founded by the rebel leader Liu Bang, known posthumously as Emperor Gaozu of Han, and briefly interrupted by the Xin dynasty (9–23 AD) of the former regent Wang Mang. This interregnum separates the Han dynasty into two periods: the Western Han or Former Han (206 BC–9 AD) and the Eastern Han or Later Han (25–220 AD). The emperor was at the pinnacle of Han society. He presided over the Han government but shared power with both the nobility and appointed ministers who came largely from the scholarly gentry class. The Han Empire was divided into areas directly controlled by the central government using an innovation inherited from the Qin known as commanderies, and a number of semi-autonomous kingdoms. These kingdoms gradually lost all vestiges of their independence, particularly following the Rebellion of the Seven States. From the reign of Emperor Wu (r. 141–87 BC) onward, the Chinese court officially sponsored Confucianism in education and court politics, synthesized with the cosmology of later scholars such as Dong Zhongshu. This policy endured until the fall of the Qing dynasty in 1911 AD. The Han dynasty saw an age of economic prosperity and witnessed a significant growth of the money economy first established during the Zhou dynasty (c. 1050–256 BC). The coinage issued by the central government mint in 119 BC remained the standard coinage of China until the Tang dynasty (618–907 AD). The period saw a number of limited institutional innovations. To finance its military campaigns and the settlement of newly conquered frontier territories, the Han government nationalized the private salt and iron industries in 117 BC, but these government monopolies were repealed during the Eastern Han dynasty. Science and technology during the Han period saw significant advances, including the process of papermaking, the nautical steering ship rudder, the use of negative numbers in mathematics, the raised-relief map, the hydraulic-powered armillary sphere for astronomy, and a seismometer for measuring earthquakes employing an inverted pendulum. The Xiongnu, a nomadic steppe confederation, defeated the Han in 200 BC and forced the Han to submit as a de facto inferior partner, but continued their raids on the Han borders. Emperor Wu launched several military campaigns against them. The ultimate Han victory in these wars eventually forced the Xiongnu to accept vassal status as Han tributaries. These campaigns expanded Han sovereignty into the Tarim Basin of Central Asia, divided the Xiongnu into two separate confederations, and helped establish the vast trade network known as the Silk Road, which reached as far as the Mediterranean world. The territories north of Han's borders were quickly overrun by the nomadic Xianbei confederation. Emperor Wu also launched successful military expeditions in the south, annexing Nanyue in 111 BC and Dian in 109 BC, and in the Korean Peninsula where the Xuantu and Lelang Commanderies were established in 108 BC. After 92 AD, the palace eunuchs increasingly involved themselves in court politics, engaging in violent power struggles between the various consort clans of the empresses and empresses dowager, causing the Han's ultimate downfall. Imperial authority was also seriously challenged by large Daoist religious societies which instigated the Yellow Turban Rebellion and the Five Pecks of Rice Rebellion. Following the death of Emperor Ling (r. 168–189 AD), the palace eunuchs suffered wholesale massacre by military officers, allowing members of the aristocracy and military governors to become warlords and divide the empire. When Cao Pi, King of Wei, usurped the throne from Emperor Xian, the Han dynasty would eventually collapse and ceased to exist.

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Happy hour

Happy hour is a marketing term for a period of time in which a venue (such as a restaurant, bar, bowling alley, stadium, or state or county fair) offers discounts on alcoholic drinks, such as beer, wine, and cocktails.

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Heliacal rising

The heliacal rising or star rise of a star, star cluster, or galaxy occurs annually when it becomes visible above the eastern horizon for a moment before sunrise, after a period of less than a year when it had not been visible.

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Hexadecimal time

Hexadecimal time is the representation of the time of day as a hexadecimal number in the interval.

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Hindu units of time

Hindu texts describe units of Kala measurements, from microseconds to Trillions of years.

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History of China

The earliest known written records of the history of China date from as early as 1250 BC,William G. Boltz, Early Chinese Writing, World Archaeology, Vol.

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History of East Asia

The History of East Asia covers the people inhabiting the eastern subregion of the Asian continent known as East Asia from prehistoric times to the present.

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History of Japan

The first human habitation in the Japanese archipelago has been traced to prehistoric times.

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History of Song

The History of Song or Song Shi (Sòng Shǐ) is one of the official Chinese historical works known as the Twenty-Four Histories of China that records the history of the Song dynasty (960–1279).

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History of Yuan

The History of Yuan (Yuán Shǐ), also known as the Yuanshi, is one of the official Chinese historical works known as the Twenty-Four Histories of China.

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Horae

In Greek mythology the Horae or Horai or Hours (Ὧραι, Hōrai,, "Seasons") were the goddesses of the seasons and the natural portions of time.

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Horologion

The Horologion (Ὡρολόγιον; Church Slavonic: Часocлoвъ, Chasoslov, Ceaslov) or Book of hours provides the fixed portions (Greek: ἀκολουθίαι, akolouthiai) of the Divine Service or the daily cycle of services as used by the Eastern Orthodox and Eastern Catholic churches.

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Horology

Horology ("the study of time", related to Latin horologium from Greek ὡρολόγιον, "instrument for telling the hour", from ὥρα hṓra "hour; time" and -o- interfix and suffix -logy) is the study of the measurement of time.

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Horsepower-hour

A horsepower-hour (hph or hp⋅h) is an outdated unit of energy, not used in the SI system of units.

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Hour angle

In astronomy and celestial navigation, the hour angle is one of the coordinates used in the equatorial coordinate system to give the direction of a point on the celestial sphere.

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Hour circle

In astronomy, the hour circles, which together with declination and distance (from the centre of mass of the planet) locate any celestial object, is the great circle through the object and the two celestial poles.

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Hour record

The hour record is the record for the longest distance cycled in one hour on a bicycle from a stationary start.

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Hours of service

Hours of Service (HOS) regulations are issued by the Federal Motor Carrier Safety Administration (FMCSA) and govern the working hours of anyone operating a commercial motor vehicle (CMV) in the United States.

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IERS Reference Meridian

The IERS Reference Meridian (IRM), also called the International Reference Meridian, is the prime meridian (0° longitude) maintained by the International Earth Rotation and Reference Systems Service (IERS).

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Indoor air quality

Indoor air quality (IAQ) is a term which refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants.

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Intercalary month (Egypt)

The intercalary month or epagomenal days.

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Islam

IslamThere are ten pronunciations of Islam in English, differing in whether the first or second syllable has the stress, whether the s is or, and whether the a is pronounced, or (when the stress is on the first syllable) (Merriam Webster).

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Italy

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

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Julian day

Julian day is the continuous count of days since the beginning of the Julian Period and is used primarily by astronomers.

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Jupiter

Jupiter is the fifth planet from the Sun and the largest in the Solar System.

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Karnak

The Karnak Temple Complex, commonly known as Karnak (from Arabic Ka-Ranak meaning "fortified village"), comprises a vast mix of decayed temples, chapels, pylons, and other buildings in Egypt.

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Kilometres per hour

The kilometre per hour (American English: kilometer per hour) is a unit of speed, expressing the number of kilometres travelled in one hour.

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Kilowatt hour

The kilowatt hour (symbol kWh, kW⋅h or kW h) is a unit of energy equal to 3.6 megajoules.

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Knot (unit)

The knot is a unit of speed equal to one nautical mile per hour, exactly 1.852 km/h (approximately 1.15078 mph).

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Labour movement

The labour movement or labor movement consists of two main wings, the trade union movement (British English) or labor union movement (American English), also called trade unionism or labor unionism on the one hand, and the political labour movement on the other.

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Laos

Laos (ລາວ,, Lāo; Laos), officially the Lao People's Democratic Republic (Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, Sathalanalat Paxathipatai Paxaxon Lao; République démocratique populaire lao), commonly referred to by its colloquial name of Muang Lao (Lao: ເມືອງລາວ, Muang Lao), is a landlocked country in the heart of the Indochinese peninsula of Mainland Southeast Asia, bordered by Myanmar (Burma) and China to the northwest, Vietnam to the east, Cambodia to the southwest and Thailand to the west and southwest.

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Latin

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

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Latitude

In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface.

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Lauds

Lauds is a divine office that takes place in the early morning hours.

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Leap second

A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time (UTC) in order to keep its time of day close to the mean solar time as realized by UT1.

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Linguistic reconstruction

Linguistic reconstruction is the practice of establishing the features of an unattested ancestor language of one or more given languages.

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Loanword

A loanword (also loan word or loan-word) is a word adopted from one language (the donor language) and incorporated into another language without translation.

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Maghrib prayer

The Maghrib prayer (صلاة المغرب, '"West prayer"), prayed just after sunset, is the fourth of five obligatory daily prayers (salat) performed by practicing Muslims.

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Man-hour

A man-hour, or less commonly person-hour, is the amount of work performed by the average worker in one hour.

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Marshall Clagett

Marshall Clagett (January 23, 1916, Washington, D.C. – October 21, 2005, Princeton, New Jersey) was an American historian of science who specialized in medieval science.

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Mass flow

This article is about the flow of fluids in biological systems.

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Matins

Matins is the monastic nighttime liturgy, ending at dawn, of the canonical hours.

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Meridian (astronomy)

In astronomy, the meridian is the great circle passing through the celestial poles, the zenith, and the nadir of an observer's location.

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Metre per hour

Metre per hour (American spelling: meter per hour) is a metric unit of both speed (scalar) and velocity (Vector (geometry)).

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Metric system

The metric system is an internationally adopted decimal system of measurement.

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Metric time

Metric time is the measure of time interval using the metric system, which defines the second as the base unit of time, and multiple and submultiple units formed with metric prefixes, such as kiloseconds and milliseconds.

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Middle Ages

In the history of Europe, the Middle Ages (or Medieval Period) lasted from the 5th to the 15th century.

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Middle English

Middle English (ME) is collectively the varieties of the English language spoken after the Norman Conquest (1066) until the late 15th century; scholarly opinion varies but the Oxford English Dictionary specifies the period of 1150 to 1500.

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Midnight office

The Midnight Office (Μεσονύκτικον, Mesonýtikon; Slavonic: Полунощница, Polúnoshnitsa; Miezonoptică) is one of the Canonical Hours that compose the cycle of daily worship in the Eastern Orthodox Church.

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Miles per hour

Miles per hour (abbreviated mph, MPH or mi/h) is an imperial and United States customary unit of speed expressing the number of statute miles covered in one hour.

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Ming dynasty

The Ming dynasty was the ruling dynasty of China – then known as the – for 276 years (1368–1644) following the collapse of the Mongol-led Yuan dynasty.

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Minute

The minute is a unit of time or angle.

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Modern English

Modern English (sometimes New English or NE as opposed to Middle English and Old English) is the form of the English language spoken since the Great Vowel Shift in England, which began in the late 14th century and was completed in roughly 1550.

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Month

A month is a unit of time, used with calendars, which is approximately as long as a natural period related to the motion of the Moon; month and Moon are cognates.

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Moon

The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.

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Nautical mile

A nautical mile is a unit of measurement defined as exactly.

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New Kingdom of Egypt

The New Kingdom, also referred to as the Egyptian Empire, is the period in ancient Egyptian history between the 16th century BC and the 11th century BC, covering the 18th, 19th, and 20th dynasties of Egypt.

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Night

Night or nighttime (sp. night-time or night time) is the period of time between sunset and sunrise, when the Sun is below the horizon.

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Ninth Dynasty of Egypt

The Ninth Dynasty of ancient Egypt (Dynasty IX) is often combined with the 7th, 8th, 10th and early 11th Dynasties under the group title First Intermediate Period.

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Non-SI units mentioned in the SI

This is a list of units that are not defined as part of the International System of Units (SI), but are otherwise mentioned in the SI, because either the General Conference on Weights and Measures (CGPM) accepts their use as being multiples or submultiples of SI-units, they have important contemporary application worldwide, or are otherwise commonly encountered worldwide.

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Nones (liturgy)

Nones, also known as None (Nona, "Ninth"), the Ninth Hour, or the Midafternoon Prayer, is a fixed time of prayer of the Divine Office of almost all the traditional Christian liturgies.

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Noon

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

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Old Chinese

Old Chinese, also called Archaic Chinese in older works, is the oldest attested stage of Chinese, and the ancestor of all modern varieties of Chinese.

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Old English

Old English (Ænglisc, Anglisc, Englisc), or Anglo-Saxon, is the earliest historical form of the English language, spoken in England and southern and eastern Scotland in the early Middle Ages.

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Old French

Old French (franceis, françois, romanz; Modern French: ancien français) was the language spoken in Northern France from the 8th century to the 14th century.

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Opera

Opera (English plural: operas; Italian plural: opere) is a form of theatre in which music has a leading role and the parts are taken by singers.

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Oxford English Dictionary

The Oxford English Dictionary (OED) is the main historical dictionary of the English language, published by the Oxford University Press.

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Part-time contract

A part-time contract is a form of employment that carries fewer hours per week than a full-time job.

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Passengers per hour per direction

Passengers per hour per direction or passengers per hour in peak direction (pphpd or p/h/d) is a measure of the capacity of a rapid transit or public transport system.

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Pendulum

A pendulum is a weight suspended from a pivot so that it can swing freely.

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Pinyin

Hanyu Pinyin Romanization, often abbreviated to pinyin, is the official romanization system for Standard Chinese in mainland China and to some extent in Taiwan.

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Poland

Poland (Polska), officially the Republic of Poland (Rzeczpospolita Polska), is a country located in Central Europe.

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Pope Paul VI

Pope Paul VI (Paulus VI; Paolo VI; born Giovanni Battista Enrico Antonio Maria Montini; 26 September 1897 – 6 August 1978) reigned from 21 June 1963 to his death in 1978.

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Pound per hour

Pound per hour is a mass flow unit.

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Prague astronomical clock

The Prague astronomical clock, or Prague orloj (Pražský orloj), is a medieval astronomical clock located in Prague, the capital of the Czech Republic.

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Prime (liturgy)

Prime, or the First Hour, is a fixed time of prayer of the traditional Divine Office (Canonical Hours), said at the first hour of daylight (approximately 6:00 a.m.), between the morning Hour of Lauds and the 9 a.m. Hour of Terce.

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Proto-Indo-European language

Proto-Indo-European (PIE) is the linguistic reconstruction of the hypothetical common ancestor of the Indo-European languages, the most widely spoken language family in the world.

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Public transport

Public transport (also known as public transportation, public transit, or mass transit) is transport of passengers by group travel systems available for use by the general public, typically managed on a schedule, operated on established routes, and that charge a posted fee for each trip.

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Puranas

The Puranas (singular: पुराण), are ancient Hindu texts eulogizing various deities, primarily the divine Trimurti God in Hinduism through divine stories.

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Pyramid Texts

The Pyramid Texts are a collection of ancient Egyptian religious texts from the time of the Old Kingdom.

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Ra

Ra (rꜥ or rˤ; also transliterated rˤw; cuneiform: ri-a or ri-ia) or Re (ⲣⲏ, Rē) is the ancient Egyptian sun god.

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Rigoletto

Rigoletto is an opera in three acts by Giuseppe Verdi.

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Root (linguistics)

A root (or root word) is a word that does not have a prefix in front of the word or a suffix at the end of the word.

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Rush hour

A rush hour (American English, British English) is a part of the day during which traffic congestion on roads and crowding on public transport is at its highest.

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Salary

A salary is a form of payment from an employer to an employee, which may be specified in an employment contract.

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Samvatsara

Samvatsara (संवत्सर) is a Sanskrit term for a "year" in Vedic literature such as the Rigveda and other ancient texts.

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Season

A season is a division of the year marked by changes in weather, ecology, and amount of daylight.

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Second

The second is the SI base unit of time, commonly understood and historically defined as 1/86,400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each.

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Second Vatican Council

The Second Vatican Council, fully the Second Ecumenical Council of the Vatican and informally known as addressed relations between the Catholic Church and the modern world.

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Sermon

A sermon is an oration, lecture, or talk by a member of a religious institution or clergy.

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Sexagesima

Sexagesima, or, in full, Sexagesima Sunday, is the name for the second Sunday before Ash Wednesday in the Gregorian Rite liturgical calendar of the Roman Catholic Church, and also in that of some Protestant denominations, particularly those with Anglican and Lutheran origins.

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Sext

Sext, or Sixth Hour, is a fixed time of prayer of the Divine Office of almost all the traditional Christian liturgies.

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Shuowen Jiezi

Shuowen Jiezi, often shortened to Shuowen, was an early 2nd-century Chinese dictionary from the Han Dynasty.

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Sidereal time

Sidereal time is a timekeeping system that astronomers use to locate celestial objects.

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Simplified Chinese characters

Simplified Chinese characters are standardized Chinese characters prescribed in the Table of General Standard Chinese Characters for use in mainland China.

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Sinhalese people

The Sinhalese (Sinhala: සිංහල ජාතිය Sinhala Jathiya, also known as Hela) are an Indo-Aryan-speaking ethnic group native to the island of Sri Lanka.

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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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Solar time

Solar time is a calculation of the passage of time based on the position of the Sun in the sky.

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Sothic cycle

The Sothic cycle or Canicular period is a period of 1,461 Egyptian civil years of 365 days each or 1,460 Julian years averaging 365¼ days each.

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St Mark's Clock

St Mark's Clock is housed in the Clock Tower on the Piazza San Marco in Venice, Italy, adjoining the Procuratie Vecchie.

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Summer

Summer is the hottest of the four temperate seasons, falling after spring and before autumn.

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Sundial

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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Sunrise

Sunrise or sun up is the instant at which the upper edge of the Sun appears over the horizon in the morning.

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Sunset

Sunset or sundown is the daily disappearance of the Sun below the horizon as a result of Earth's rotation.

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Sussex

Sussex, from the Old English Sūþsēaxe (South Saxons), is a historic county in South East England corresponding roughly in area to the ancient Kingdom of Sussex.

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Tang dynasty

The Tang dynasty or the Tang Empire was an imperial dynasty of China preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdoms period.

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Terce

Terce, or Third Hour, is a fixed time of prayer of the Divine Office in almost all the Christian liturgies.

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Thailand

Thailand, officially the Kingdom of Thailand and formerly known as Siam, is a unitary state at the center of the Southeast Asian Indochinese peninsula composed of 76 provinces.

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Three Kingdoms

The Three Kingdoms (220–280) was the tripartite division of China between the states of Wei (魏), Shu (蜀), and Wu (吳).

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Tidal acceleration

Tidal acceleration is an effect of the tidal forces between an orbiting natural satellite (e.g. the Moon), and the primary planet that it orbits (e.g. Earth).

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Time

Time is the indefinite continued progress of existence and events that occur in apparently irreversible succession from the past through the present to the future.

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Time zone

A time zone is a region of the globe that observes a uniform standard time for legal, commercial, and social purposes.

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Tower of the Winds

The Tower of the Winds or the Horologion of Andronikos Kyrrhestes is an octagonal Pentelic marble clocktower in the Roman Agora in Athens that functioned as a horologion or "timepiece".

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Traditional Chinese characters

Traditional Chinese characters (Pinyin) are Chinese characters in any character set that does not contain newly created characters or character substitutions performed after 1946.

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Traditional Chinese timekeeping

The traditional Chinese time systems refers to the time standards for divisions of the day used in China until the introduction of the Shixian calendar at the beginning of the Qing dynasty.

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Truck driver

A truck driver (commonly referred to as a trucker, teamster or driver in the United States and Canada; a truckie in Australia and New Zealand; a lorry driver, or driver in Ireland, the United Kingdom, India, Nepal and Pakistan) is a person who earns a living as the driver of a truck (usually a semi truck, box truck or dump truck).

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Un ballo in maschera

Un ballo in maschera (A Masked Ball) is an 1859 opera in three acts by Giuseppe Verdi.

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Unit of measurement

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

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Units of measurement in France

region of southeastern France France has a unique history of units of measurement due to radical attempts to adopt a metric system following the French Revolution.

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Universal Time

Universal Time (UT) is a time standard based on Earth's rotation.

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University of Chicago Press

The University of Chicago Press is the largest and one of the oldest university presses in the United States.

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Uraeus

The Uraeus (plural Uraei or Uraeuses; from the Greek οὐραῖος, ouraîos, "on its tail"; from Egyptian jʿr.t (iaret), "rearing cobra") is the stylized, upright form of an Egyptian cobra (asp, serpent, or snake), used as a symbol of sovereignty, royalty, deity and divine authority in ancient Egypt.

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Vedas

The Vedas are ancient Sanskrit texts of Hinduism. Above: A page from the ''Atharvaveda''. The Vedas (Sanskrit: वेद, "knowledge") are a large body of knowledge texts originating in the ancient Indian subcontinent.

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Vespers

Vespers is a sunset evening prayer service in the Orthodox, Roman Catholic and Eastern Catholic, Anglican, and Lutheran liturgies of the canonical hours.

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Wadjet

Wadjet (or; Egyptian wꜢḏyt "green one"), known to the Greek world as Uto (Οὐτώ/) or Buto (Βουτώ/) among other names including Wedjat, Uadjet, and Udjo was originally the ancient local goddess of the city of Dep (Buto).

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Wage labour

Wage labour (also wage labor in American English) is the socioeconomic relationship between a worker and an employer, where the worker sells his or her labour under a formal or informal employment contract.

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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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Weather

Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy.

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Working time

Working time is the period of time that a person spends at paid labor.

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Year

A year is the orbital period of the Earth moving in its orbit around the Sun.

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Yellow Emperor

The Yellow Emperor, also known as the Yellow Thearch, the Yellow God or the Yellow Lord, or simply by his Chinese name Huangdi, is a deity in Chinese religion, one of the legendary Chinese sovereigns and culture heroes included among the mytho-historical Three Sovereigns and Five Emperors and cosmological Five Forms of the Highest Deity (五方上帝 Wǔfāng Shàngdì).

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Yuan dynasty

The Yuan dynasty, officially the Great Yuan (Yehe Yuan Ulus), was the empire or ruling dynasty of China established by Kublai Khan, leader of the Mongolian Borjigin clan.

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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.

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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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Babylonian hours, Egyptian hour, Egyptian hours, Hour unit, Hours, Italian hour, Italian time, Italic hour, Italic time, Quarter-hour, Stound, Temporal hour, Time of day, 🝮.

References

[1] https://en.wikipedia.org/wiki/Hour

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