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In many languages, the names given to the seven days of the
week A week is a unit of time equal to seven days. It is the standard time period used for short cycles of days in most parts of the world. The days are often used to indicate common work days and rest days, as well as days of worship. Weeks are of ...
are derived from the names of the classical planets in Hellenistic astronomy, which were in turn named after contemporary deities, a system introduced by the Sumerians and later adopted by the Babylonians from whom the Roman Empire adopted the system during
Late Antiquity Late antiquity is the time of transition from classical antiquity to the Middle Ages, generally spanning the 3rd–7th century in Europe and adjacent areas bordering the Mediterranean Basin. The popularization of this periodization in English ha ...
. In some other languages, the days are named after corresponding deities of the regional culture, beginning either with Sunday or with
Monday Monday is the day of the week between Sunday and Tuesday. According to the International Organization for Standardization's ISO 8601 standard, it is the first day of the week and in countries that adopt the "Sunday-first" convention, it is t ...
. The seven-day week was adopted in early Christianity from the
Hebrew calendar The Hebrew calendar ( he, הַלּוּחַ הָעִבְרִי, translit=HaLuah HaIvri), also called the Jewish calendar, is a lunisolar calendar used today for Jewish religious observance, and as an official calendar of the state of Israel. ...
, and gradually replaced the Roman nundinal cycle as the new religion spread. Sunday remained the first day of the week, being considered the
Lord's Day The Lord's Day in Christianity is generally Sunday, the principal day of communal worship. It is observed by most Christians as the weekly memorial of the resurrection of Jesus Christ, who is said in the canonical Gospels to have been witnessed ...
, while the Jewish sabbath remained the seventh. Emperor Constantine adopted the seven-day week for official use in AD 321, making the
Day of the Sun The Day of the Sun () is an annual public holiday in North Korea on 15 April, the birth anniversary of Kim Il-sung, founder and Eternal President of North Korea. It is the most important national holiday in the country, and is considered to be ...
() a legal holiday. In the international standard
ISO 8601 ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data. It is maintained by the Geneva-based International Organization for Standardization (ISO) and was first published in 1988, w ...
, Monday is treated as the first day of the week.


Days named after planets


Greco-Roman tradition

Between the 1st and 3rd centuries AD, the
Roman Empire The Roman Empire ( la, Imperium Romanum ; grc-gre, Βασιλεία τῶν Ῥωμαίων, Basileía tôn Rhōmaíōn) was the post- Republican period of ancient Rome. As a polity, it included large territorial holdings around the Mediter ...
gradually replaced the eight-day Roman nundinal cycle with the seven-day week. The earliest evidence for this new system is a Pompeiian graffito referring to 6 February (''ante diem viii idus Februarias'') of the year
AD 60 __NOTOC__ AD 60 ( LX) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Nero and Lentulus (or, less frequently, year 813 ''Ab urbe cond ...
as ''dies solis'' ("Sunday"). Another early witness is a reference to a lost treatise by
Plutarch Plutarch (; grc-gre, Πλούταρχος, ''Ploútarchos''; ; – after AD 119) was a Greek Middle Platonist philosopher, historian, biographer, essayist, and priest at the Temple of Apollo in Delphi. He is known primarily for hi ...
, written in about AD 100, which addressed the question of: "Why are the days named after the planets reckoned in a different order from the 'actual' order?". (The treatise is lost, but the answer to the question is known; see planetary hours). The
Ptolemaic system In astronomy, the geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Under most geocentric models, the Sun, Moon, stars, an ...
of planetary spheres asserts that the order of the heavenly bodies, from the farthest to the closest to the Earth is: Saturn,
Jupiter Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a gas giant with a mass more than two and a half times that of all the other planets in the Solar System combined, but slightly less than one-thousandth t ...
,
Mars Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury. In the English language, Mars is named for the Roman god of war. Mars is a terrestrial planet with a thin at ...
,
Sun The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core. The Sun radiates this energy mainly as light, ultraviolet, and infrared radi ...
,
Venus Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never f ...
, Mercury,
Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...
, or, objectively, the planets are ordered from slowest to fastest moving as they appear in the night sky. The days were named after the planets of Hellenistic astrology, in the order: Sun, Moon, Mars (''Ares''), Mercury (''Hermes''), Jupiter (''Zeus''), Venus (''Aphrodite'') and Saturn (''Cronos''). The seven-day week spread throughout the
Roman Empire The Roman Empire ( la, Imperium Romanum ; grc-gre, Βασιλεία τῶν Ῥωμαίων, Basileía tôn Rhōmaíōn) was the post- Republican period of ancient Rome. As a polity, it included large territorial holdings around the Mediter ...
in
Late Antiquity Late antiquity is the time of transition from classical antiquity to the Middle Ages, generally spanning the 3rd–7th century in Europe and adjacent areas bordering the Mediterranean Basin. The popularization of this periodization in English ha ...
. By the 4th century, it was in wide use throughout the Empire. The Greek and Latin names are as follows:


Romance languages

Except for Modern Portuguese and Mirandese, the Romance languages preserved the Latin names, except for the names of Sunday, which was replaced by '' iesDominicus (Dominica)'', i.e. "the
Lord's Day The Lord's Day in Christianity is generally Sunday, the principal day of communal worship. It is observed by most Christians as the weekly memorial of the resurrection of Jesus Christ, who is said in the canonical Gospels to have been witnessed ...
", and of Saturday, which was named for the Sabbath. Mirandese and Modern Portuguese use numbered weekdays (see below), but retain ''sábado'' and ''demingo''/''domingo'' for weekends.


Celtic languages

Early
Old Irish Old Irish, also called Old Gaelic ( sga, Goídelc, Ogham script: ᚌᚑᚔᚇᚓᚂᚉ; ga, Sean-Ghaeilge; gd, Seann-Ghàidhlig; gv, Shenn Yernish or ), is the oldest form of the Goidelic/Gaelic language for which there are extensive writt ...
adopted the names from Latin, but introduced separate terms of Norse origin for Wednesday, Thursday and Friday, then later supplanted these with terms relating to church fasting practices.


Adoptions from Romance

Albanian adopted the Latin terms for Tuesday, Wednesday and Saturday, adopted translations of the Latin terms for Sunday and Monday, and kept native terms for Thursday and Friday. Other languages adopted the week together with the Latin (Romance) names for the days of the week in the colonial period. Several constructed languages also adopted the Latin terminology. With the exception of ''sabato'', the Esperanto names are all from French, cf. French ''dimanche, lundi, mardi, mercredi, jeudi, vendredi''.


Germanic tradition

The
Germanic peoples The Germanic peoples were historical groups of people that once occupied Central Europe and Scandinavia during antiquity and into the early Middle Ages. Since the 19th century, they have traditionally been defined by the use of ancient and e ...
adapted the system introduced by the Romans by substituting the
Germanic deities In Germanic paganism, the indigenous religion of the ancient Germanic peoples who inhabited Germanic Europe, there were a number of different gods and goddesses. Germanic deities are attested from numerous sources, including works of literat ...
for the Roman ones (with the exception of ''Saturday'') in a process known as . The date of the introduction of this system is not known exactly, but it must have happened later than AD 200 but before the introduction of Christianity during the 6th to 7th centuries, i.e., during the final phase or soon after the collapse of the
Western Roman Empire The Western Roman Empire comprised the western provinces of the Roman Empire at any time during which they were administered by a separate independent Imperial court; in particular, this term is used in historiography to describe the period ...
. This period is later than the
Common Germanic Proto-Germanic (abbreviated PGmc; also called Common Germanic) is the reconstructed proto-language of the Germanic branch of the Indo-European languages. Proto-Germanic eventually developed from pre-Proto-Germanic into three Germanic br ...
stage, but still during the phase of undifferentiated
West Germanic The West Germanic languages constitute the largest of the three branches of the Germanic family of languages (the others being the North Germanic and the extinct East Germanic languages). The West Germanic branch is classically subdivided into ...
. The names of the days of the week in
North Germanic languages The North Germanic languages make up one of the three branches of the Germanic languages—a sub-family of the Indo-European languages—along with the West Germanic languages and the extinct East Germanic languages. The language group is also ...
were not
calque In linguistics, a calque () or loan translation is a word or phrase borrowed from another language by literal word-for-word or root-for-root translation. When used as a verb, "to calque" means to borrow a word or phrase from another language w ...
d from Latin directly, but taken from the West Germanic names. * Sunday: Old English (), meaning "sun's day". This is a translation of the Latin phrase . English, like most of the
Germanic languages The Germanic languages are a branch of the Indo-European language family spoken natively by a population of about 515 million people mainly in Europe, North America, Oceania and Southern Africa. The most widely spoken Germanic language, E ...
, preserves the day's association with the sun. Many other European languages, including all of the
Romance languages The Romance languages, sometimes referred to as Latin languages or Neo-Latin languages, are the various modern languages that evolved from Vulgar Latin. They are the only extant subgroup of the Italic languages in the Indo-European language ...
, have changed its name to the equivalent of "the Lord's day" (based on Ecclesiastical Latin ). In both West Germanic and North Germanic mythology, the Sun is personified as Sunna/Sól. *
Monday Monday is the day of the week between Sunday and Tuesday. According to the International Organization for Standardization's ISO 8601 standard, it is the first day of the week and in countries that adopt the "Sunday-first" convention, it is t ...
: Old English (), meaning "Moon's day". This is equivalent to the Latin name . In North Germanic mythology, the Moon is personified as Máni. *
Tuesday Tuesday is the day of the week between Monday and Wednesday. According to international standard ISO 8601, Monday is the first day of the week; thus, Tuesday is the second day of the week. According to some commonly used calendars, however ...
: Old English (), meaning "Tiw's day". Tiw (Norse ) was a one-handed god associated with single combat and pledges in Norse mythology and also attested prominently in wider
Germanic paganism Germanic paganism or Germanic religion refers to the traditional, culturally significant religion of the Germanic peoples. With a chronological range of at least one thousand years in an area covering Scandinavia, the British Isles, modern Germ ...
. The name of the day is also related to the Latin name , "Day of
Mars Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury. In the English language, Mars is named for the Roman god of war. Mars is a terrestrial planet with a thin at ...
" (the Roman god of war). *
Wednesday Wednesday is the day of the week between Tuesday and Thursday. According to international standard ISO 8601, it is the third day of the week. In countries which have Friday as their holiday, Wednesday is the fifth day of the week. In countrie ...
: Old English () meaning the day of the Germanic god
Woden Odin (; from non, Óðinn, ) is a widely revered god in Germanic paganism. Norse mythology, the source of most surviving information about him, associates him with wisdom, healing, death, royalty, the gallows, knowledge, war, battle, victory ...
(known as
Óðinn Odin (; from non, Óðinn, ) is a widely revered god in Germanic paganism. Norse mythology, the source of most surviving information about him, associates him with wisdom, healing, death, royalty, the gallows, knowledge, war, battle, victory, ...
among the North Germanic peoples), and a prominent god of the Anglo-Saxons (and other Germanic peoples) in England until about the seventh century. This corresponds to the Latin counterpart , "Day of Mercury", as both are deities of magic and knowledge. The German ''Mittwoch'', the Low German , the ''miðviku-'' in Icelandic and the Finnish all mean "mid-week". *
Thursday Thursday is the day of the week between Wednesday and Friday. According to the ISO 8601 international standard, it is the fourth day of the week. In countries which adopt the "Sunday-first" convention, it is the fifth day of the week. Name ''Se ...
: Old English (), meaning ''s day'. means
thunder Thunder is the sound caused by lightning. Depending upon the distance from and nature of the lightning, it can range from a long, low rumble to a sudden, loud crack. The sudden increase in temperature and hence pressure caused by the lightning pr ...
or its personification, the Norse god known in Modern English as
Thor Thor (; from non, Þórr ) is a prominent god in Germanic paganism. In Norse mythology, he is a hammer-wielding god associated with lightning, thunder, storms, sacred groves and trees, strength, the protection of humankind, hallowing, an ...
. Similarly Dutch , German ('thunder's day'), Finnish , and Scandinavian ('Thor's day'). "Thor's day" corresponds to Latin , "day of
Jupiter Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a gas giant with a mass more than two and a half times that of all the other planets in the Solar System combined, but slightly less than one-thousandth t ...
" (the Roman god of thunder). *
Friday Friday is the day of the week between Thursday and Saturday. In countries that adopt the traditional "Sunday-first" convention, it is the sixth day of the week. In countries adopting the ISO-defined "Monday-first" convention, it is the fifth d ...
: Old English (), meaning the day of the Anglo-Saxon goddess . The Norse name for the planet Venus was , '
Frigg Frigg (; Old Norse: ) is a goddess, one of the Æsir, in Germanic mythology. In Norse mythology, the source of most surviving information about her, she is associated with marriage, prophecy, clairvoyance and motherhood, and dwells in the wet ...
's star'. It is based on the Latin , "Day of
Venus Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never f ...
". *
Saturday Saturday is the day of the week between Friday and Sunday. No later than the 2nd century, the Romans named Saturday ("Saturn's Day") for the planet Saturn, which controlled the first hour of that day, according to Vettius Valens. The day ...
: named after the Roman god Saturn associated with the Titan Cronus, father of Zeus and many Olympians. Its original Anglo-Saxon rendering was (). In Latin, it was , "Day of Saturn". The Nordic ''laugardagur'', ''leygardagur'', ''laurdag'', etc. deviate significantly as they have no reference to either the Norse or the Roman pantheon; they derive from Old Nordic , literally "washing-day". The German (mainly used in northern and eastern Germany) and the Low German mean "Sunday Eve"; the German word derives from the name for Shabbat.


Adoptions from Germanic


Hindu tradition

Hindu astrology Jyotisha or Jyotishya (from Sanskrit ', from ' “light, heavenly body" and ''ish'' - from Isvara or God) is the traditional Hindu system of astrology, also known as Hindu astrology, Indian astrology and more recently Vedic astrology. It is one ...
uses the concept of days under the regency of a planet under the term ''vāsara'', the days of the week being called '' āditya-, soma-, maṅgala-,
budha Budha ( sa, बुध) is a Sanskrit word that connotes the planet Mercury. Budha, in Hindu legends, is also a deity. He is also known as Soumya (Sanskrit: सौम्य, lit. ''son of Moon''), Rauhineya and Tunga and is the Nakshatra lo ...
-, guru-, śukra-,'' and '' śani-vāsara''. ''śukrá'' is a name of Venus (regarded as a son of Bhṛgu); ''
guru Guru ( sa, गुरु, IAST: ''guru;'' Pali'': garu'') is a Sanskrit term for a "mentor, guide, expert, or master" of certain knowledge or field. In pan-Indian traditions, a guru is more than a teacher: traditionally, the guru is a reverential ...
'' is here a title of
Bṛhaspati Brihaspati ( sa, बृहस्पति, ), also known as Guru, is a Hindu deity. In the ancient Vedic scriptures of Hinduism, Brihaspati is a deity associated with fire, and the word also refers to a rishi (sage) who counsels the devas ( ...
, and hence of Jupiter; ''budha'' "Mercury" is regarded as a son of ''Soma'', i.e. the Moon. Knowledge of Greek astrology existed since about the 2nd century BC, but references to the ''vāsara'' occur somewhat later, during the
Gupta period The Gupta Empire was an ancient Indian empire which existed from the early 4th century CE to late 6th century CE. At its zenith, from approximately 319 to 467 CE, it covered much of the Indian subcontinent. This period is considered as the Gold ...
(''
Yājñavalkya Smṛti The ''Yajnavalkya Smriti'' ( sa, याज्ञवल्क्य स्मृति, IAST: ') is one of the many Dharma-related texts of Hinduism composed in Sanskrit. It is dated between the 3rd to 5th-century CE, and belongs to the Dharmasha ...
'', c. 3rd to 5th century), i.e. at roughly the same period or before the system was introduced in the Roman Empire.


In languages of the Indian subcontinent


Southeast Asian languages

The
Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical south-eastern region of Asia, consisting of the regions that are situated south of mainlan ...
n tradition also uses the Hindu names of the days of the week.
Hindu astrology Jyotisha or Jyotishya (from Sanskrit ', from ' “light, heavenly body" and ''ish'' - from Isvara or God) is the traditional Hindu system of astrology, also known as Hindu astrology, Indian astrology and more recently Vedic astrology. It is one ...
adopted the concept of days under the regency of a planet under the term ''vāra'', the days of the week being called '' āditya-, soma-, maṅgala-,
budha Budha ( sa, बुध) is a Sanskrit word that connotes the planet Mercury. Budha, in Hindu legends, is also a deity. He is also known as Soumya (Sanskrit: सौम्य, lit. ''son of Moon''), Rauhineya and Tunga and is the Nakshatra lo ...
-, guru-, śukra-,'' and '' śani-vāra''. ''śukrá'' is a name of Venus (regarded as a son of Bhṛgu); ''
guru Guru ( sa, गुरु, IAST: ''guru;'' Pali'': garu'') is a Sanskrit term for a "mentor, guide, expert, or master" of certain knowledge or field. In pan-Indian traditions, a guru is more than a teacher: traditionally, the guru is a reverential ...
'' is here a title of
Bṛhaspati Brihaspati ( sa, बृहस्पति, ), also known as Guru, is a Hindu deity. In the ancient Vedic scriptures of Hinduism, Brihaspati is a deity associated with fire, and the word also refers to a rishi (sage) who counsels the devas ( ...
, and hence of Jupiter; ''budha'' "Mercury" is regarded as a son of ''Soma'', i.e. the Moon.


Northeast Asian languages


East Asian tradition

The East Asian naming system for the days of the week closely parallels that of the Latin system and is ordered after the "Seven Luminaries" (七曜 ''qī yào''), which consists of the Sun, Moon and the five planets visible to the naked eye. The Chinese had apparently adopted the seven-day week from the Hellenistic system by the 4th century, although by which route is not entirely clear. It was again transmitted to China in the 8th century by Manichaeans, via the country of Kang (a Central Asian polity near Samarkand). The 4th-century date, according to the ''
Cihai The ''Cihai'' is a large-scale dictionary and encyclopedia of Standard Mandarin Chinese. The Zhonghua Book Company published the first ''Cihai'' edition in 1938, and the Shanghai Lexicographical Publishing House revised editions in 1979, 1989, ...
'' encyclopedia, is due to a reference to Fan Ning (范寧), an astrologer of the Jin Dynasty. The renewed adoption from Manichaeans in the 8th century (
Tang Dynasty The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdom ...
) is documented with the writings of the Chinese Buddhist monk Yijing and the Ceylonese Buddhist monk Bu Kong. The Chinese transliteration of the planetary system was soon brought to Japan by the Japanese monk Kobo Daishi; surviving diaries of the Japanese statesman
Fujiwara no Michinaga was a Japanese statesman. The Fujiwara clan's control over Japan and its politics reached its zenith under his leadership. Early life Michinaga was born in Kyōto, the son of Kaneiye. Kaneiye had become Regent in 986, holding the position unt ...
show the seven-day system in use in
Heian Period The is the last division of classical Japanese history, running from 794 to 1185. It followed the Nara period, beginning when the 50th emperor, Emperor Kanmu, moved the capital of Japan to Heian-kyō (modern Kyoto). means "peace" in Japanese ...
Japan as early as 1007. In Japan, the seven-day system was kept in use (for astrological purposes) until its promotion to a full-fledged (Western-style) calendrical basis during the Meiji era. In China, with the founding of the Republic of China in 1911, Monday through Saturday in China are now named after the luminaries implicitly with the numbers. :''Pronunciations for Classical Chinese names are given in Standard Chinese.''


Numbered days of the week


Days numbered from Monday

The
ISO ISO is the most common abbreviation for the International Organization for Standardization. ISO or Iso may also refer to: Business and finance * Iso (supermarket), a chain of Danish supermarkets incorporated into the SuperBest chain in 2007 * Iso ...
prescribes
Monday Monday is the day of the week between Sunday and Tuesday. According to the International Organization for Standardization's ISO 8601 standard, it is the first day of the week and in countries that adopt the "Sunday-first" convention, it is t ...
as the first day of the week with ISO-8601 for software date formats. The Slavic, Baltic and
Uralic languages The Uralic languages (; sometimes called Uralian languages ) form a language family of 38 languages spoken by approximately 25million people, predominantly in Northern Eurasia. The Uralic languages with the most native speakers are Hungarian (w ...
(except Finnish and partially Estonian and Võro) adopted numbering but took Monday rather than Sunday as the "first day". This convention is also found in some Austronesian languages whose speakers were converted to Christianity by European missionaries. In Slavic languages, some of the names correspond to numerals after Sunday: compare Russian ''vtornik'' () "Tuesday" and ''vtoroj'' () "the second", ''chetverg'' () "Thursday" and ''chetvjortyj'' () "the fourth", ''pyatnitsa'' () "Friday" and ''pyatyj'' () "the fifth"; see also
the Notes ''The Notes'' is a novel by Nobel Prize in Literature, Nobel Prize-winning author José Saramago. It was first published in 1976. References

Novels by José Saramago 1976 novels 20th-century Portuguese novels Portuguese-language novels ...
. In Standard Chinese, the week is referred to as the "Stellar Period" () or "Cycle" (). The modern Chinese names for the days of the week are based on a simple numerical sequence. The word for "week" is followed by a number indicating the day: "Monday" is literally the "Stellar Period One"/"Cycle One", i.e. the "First day of the Stellar Period/Cycle", etc. The exception is Sunday, where 日 (''rì''), "day" or "Sun", is used instead of a number. A slightly informal and colloquial variant to 日 is 天 (''tiān'') "day", "sky" or "heaven". Accordingly, the notational abbreviation of the days of the week uses the numbers, e.g. 一 for "M" or "Mon(.)", "Monday". Note that the abbreviation of Sunday uses exclusively 日 and not 天. Attempted usage of 天 as such will not be understood. Colloquially, the week is also known as the "Prayer" (), with the names of the days of the week formed accordingly. The following is a table of the Mandarin names of the days of the weeks. Note that standard Taiwan Mandarin pronounces 期 as ''qí'', so 星期 is instead ''xīngqí''. While all varieties of Mandarin may pronounce 星期 as ''xīngqi'' and 禮拜/礼拜 as ''lǐbai'', the second syllable with the neutral tone, this is not reflected in the table either for legibility. Several Sinitic languages refer to Saturday as 週末 "end of the week" and Sunday as 禮拜. Examples include Shenyang Mandarin, Hanyuan Sichuanese Mandarin,
Taishanese Taishanese (), alternatively romanized in Cantonese as Toishanese or Toisanese, in local dialect as Hoisanese or Hoisan-wa, is a dialect of Yue Chinese native to Taishan, Guangdong. Although it is related to Cantonese, Taishanese has littl ...
, Yudu Hakka, Teochew, Ningbonese, and Loudi
Old Xiang Old Xiang, also known as Lou-Shao (娄邵片 / 婁邵片), is a conservative Xiang Chinese language. It is spoken in the central areas of Hunan where it has been to some extent isolated from the neighboring Chinese languages, Southwestern Mandari ...
. Some Hakka varieties in Taiwan still use the traditional Luminaries.


Days numbered from Sunday

Sunday comes first in order in calendars shown in the table below. In the Abrahamic tradition, the first day of the week is Sunday. Biblical Sabbath (corresponding to Saturday) is when
God In monotheistic thought, God is usually viewed as the supreme being, creator, and principal object of faith. Swinburne, R.G. "God" in Honderich, Ted. (ed)''The Oxford Companion to Philosophy'', Oxford University Press, 1995. God is typically ...
rested from six-day Creation, making the day following the Sabbath the first day of the week (corresponding to Sunday). Seventh-day Sabbaths were sanctified for celebration and rest. After the week was adopted in early Christianity, Sunday remained the first day of the week, but also gradually displaced Saturday as the day of celebration and rest, being considered the
Lord's Day The Lord's Day in Christianity is generally Sunday, the principal day of communal worship. It is observed by most Christians as the weekly memorial of the resurrection of Jesus Christ, who is said in the canonical Gospels to have been witnessed ...
. Saint Martin of Dumio (c. 520–580 0520–10580, archbishop of
Braga Braga ( , ; cel-x-proto, Bracara) is a city and a municipality, capital of the northwestern Portuguese district of Braga and of the historical and cultural Minho Province. Braga Municipality has a resident population of 193,333 inhabitants (in ...
, decided not to call days by pagan gods and to use ecclesiastic terminology to designate them. While the custom of numbering the days of the week was mostly prevalent in the
Eastern Church Eastern Christianity comprises Christian traditions and church families that originally developed during classical and late antiquity in Eastern Europe, Southeastern Europe, Asia Minor, the Caucasus, Northeast Africa, the Fertile Crescent and ...
, Portuguese, Mirandese and Galician, due to Martin's influence, are the only
Romance languages The Romance languages, sometimes referred to as Latin languages or Neo-Latin languages, are the various modern languages that evolved from Vulgar Latin. They are the only extant subgroup of the Italic languages in the Indo-European language ...
in which the names of the days come from numbers rather than planetary names. Members of the
Religious Society of Friends Quakers are people who belong to a historically Protestant Christian set of Christian denomination, denominations known formally as the Religious Society of Friends. Members of these movements ("theFriends") are generally united by a belie ...
(Quakers) historically objected to the pagan etymologies of days and months and substituted numbering, beginning with First Day for Sunday. Icelandic is a special case within the Germanic languages, maintaining only the Sun and Moon (''sunnudagur'' and ''mánudagur'' respectively), while dispensing with the names of the explicitly heathen gods in favour of a combination of numbered days and days whose names are linked to pious or domestic routine (''föstudagur'', "Fasting Day" and ''laugardagur'', "Washing Day"). The "washing day" is also used in other
North Germanic languages The North Germanic languages make up one of the three branches of the Germanic languages—a sub-family of the Indo-European languages—along with the West Germanic languages and the extinct East Germanic languages. The language group is also ...
, but otherwise the names correspond to those of English.


Days numbered from Saturday

In Swahili, the day begins at sunrise, unlike in the Arabic and Hebrew calendars where the day starts at sunset (therefore an offset of twelve hours on average), and unlike in the Western world where the day starts at midnight (therefore an offset of six hours on average). Saturday is therefore the first day of the week, as it is the day that includes the first night of the week in Arabic. Etymologically speaking, Swahili has two "fifth" days. The words for Saturday through Wednesday contain the Bantu-derived Swahili words for "one" through "five". The word for Thursday, ''Alhamisi'', is of Arabic origin and means "the fifth" (day). The word for Friday, ''Ijumaa'', is also Arabic and means (day of) "gathering" for the Friday noon prayers in Islam.


Mixing of numbering and astronomy

In the Žejane dialect of Istro-Romanian, ''lur'' (Monday) and ''virer'' (Friday) follow the Latin convention, while ''utorek'' (Tuesday), ''sredu'' (Wednesday), and ''četrtok'' (Thursday) follow the Slavic convention. There are several systems in the different Basque dialects.
Astronomy and Basque Language
', Henrike Knörr, ''Oxford VI and SEAC 99 "Astronomy and Cultural Diversity"'',
La Laguna LA most frequently refers to Los Angeles, the second largest city in the United States. La, LA, or L.A. may also refer to: Arts and entertainment Music * La (musical note), or A, the sixth note * "L.A.", a song by Elliott Smith on ''Figure ...
, June 1999. It references Alessandro Bausani, 1982, ''The prehistoric Basque week of three days: archaeoastronomical notes'', ''The Bulletin of the Center for Archaeoastronomy'' (Maryland), v. 2, 16–22.
In Judaeo-Spanish (Ladino), which is mainly based on a medieval version of Spanish, the five days of Monday–Friday closely follow the Spanish names. Sunday uses the Arabic name, which is based on numbering, because a Jewish language was not likely to adapt a name based on "Lord's Day" for Sunday. As in Spanish, the Ladino name for Saturday is based on ''Sabbath''. However, as a Jewish language—and with Saturday being the actual day of rest in the Jewish community—Ladino directly adapted the Hebrew name, '' Shabbat''. The days of the week in
Meitei language Meitei (), also known as Manipuri (, ), is a Tibeto-Burman language of north-eastern India. It is spoken by around 1.8 million people, predominantly in the state of Manipur, but also by smaller communities in the rest of the country and in p ...
(officially known as
Manipuri language Meitei (), also known as Manipuri (, ), is a Tibeto-Burman language of north-eastern India. It is spoken by around 1.8 million people, predominantly in the state of Manipur, but also by smaller communities in the rest of the country and in pa ...
) originated from the Sanamahi creation myth of Meitei mythology.


See also

* Akan names of the seven-day week, known as ''Nawotwe'' * Bahá'í calendar (section Weekdays) *
Calculating the day of the week The determination of the day of the week for any date may be performed with a variety of algorithms. In addition, perpetual calendars require no calculation by the user, and are essentially lookup tables. A typical application is to calculate the ...
*
Week A week is a unit of time equal to seven days. It is the standard time period used for short cycles of days in most parts of the world. The days are often used to indicate common work days and rest days, as well as days of worship. Weeks are of ...
*
Work Week The weekdays and weekend are the complementary parts of the week devoted to labour and rest, respectively. The legal weekdays (British English), or workweek (American English), is the part of the seven-day week devoted to working. In most of t ...
*
Feria In the liturgy of the Catholic Church, a feria is a day of the week other than Sunday. In more recent official liturgical texts in English, the term ''weekday'' is used instead of ''feria''. If the feast day of a saint falls on such a day, the ...


Notes


Sunday

From Latin () or Greek () Holy Day and First-Day of the Week (Day of the Sun -> Light -> Resurrection -> Born again) (
Christianity Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth. It is the world's largest and most widespread religion with roughly 2.38 billion followers representing one-third of the global pop ...
)
Resurrection Resurrection or anastasis is the concept of coming back to life after death. In a number of religions, a dying-and-rising god is a deity which dies and is resurrected. Reincarnation is a similar process hypothesized by other religions, whic ...
(
Christianity Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth. It is the world's largest and most widespread religion with roughly 2.38 billion followers representing one-third of the global pop ...
) Bazaar Day Market Day No Work Full good day Borrowed from English ''week'' From an
Old Burmese Old Burmese was an early form of the Burmese language, as attested in the stone inscriptions of Pagan, and is the oldest phase of Burmese linguistic history. The transition to Middle Burmese occurred in the 16th century. The transition to Middle ...
word, not of Indic origin.


Monday

After No Work After Bazaar Head of Week Master (as in Pir, because
Muhammad Muhammad ( ar, مُحَمَّد;  570 – 8 June 632 CE) was an Arab religious, social, and political leader and the founder of Islam. According to Islamic doctrine, he was a prophet divinely inspired to preach and confirm the mo ...
was born on a Monday) From an
Old Burmese Old Burmese was an early form of the Burmese language, as attested in the stone inscriptions of Pagan, and is the oldest phase of Burmese linguistic history. The transition to Middle Burmese occurred in the 16th century. The transition to Middle ...
word, not of Indic origin. First day of the week


Tuesday

Thing Thing or The Thing may refer to: Philosophy * An object * Broadly, an entity * Thing-in-itself (or ''noumenon''), the reality that underlies perceptions, a term coined by Immanuel Kant * Thing theory, a branch of critical theory that focuse ...
(Assembly), of which god Tyr/Ziu was the patron. Second day of the week (
cf. The abbreviation ''cf.'' (short for the la, confer/conferatur, both meaning "compare") is used in writing to refer the reader to other material to make a comparison with the topic being discussed. Style guides recommend that ''cf.'' be used onl ...
Hungarian 'two') Third day of the week. From
Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walter ...
'third day' From
Proto-Slavic Proto-Slavic (abbreviated PSl., PS.; also called Common Slavic or Common Slavonic) is the unattested, reconstructed proto-language of all Slavic languages. It represents Slavic speech approximately from the 2nd millennium B.C. through the 6th ...
'second'


Wednesday

Mid-week ''or'' Middle The First Fast (
Christianity Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth. It is the world's largest and most widespread religion with roughly 2.38 billion followers representing one-third of the global pop ...
) Third day of the week


Thursday

The day between two fasts (''An Dé idir dhá aoin'', contracted to ''An Déardaoin'') (
Christianity Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth. It is the world's largest and most widespread religion with roughly 2.38 billion followers representing one-third of the global pop ...
) Five (Arabic) Fifth day of the week. Fourth day of the week.


Friday

The Fast (Celtic) or Fasting Day (Icelandic) (
Christianity Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth. It is the world's largest and most widespread religion with roughly 2.38 billion followers representing one-third of the global pop ...
) Good Friday or Preparation (
Christianity Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth. It is the world's largest and most widespread religion with roughly 2.38 billion followers representing one-third of the global pop ...
)
Jumu'ah In Islam, Friday prayer or Congregational prayer ( ar, صَلَاة ٱلْجُمُعَة, ') is a prayer ('' ṣalāt'') that Muslims hold every Friday, after noon instead of the Zuhr prayer. Muslims ordinarily pray five times each day accordin ...
(Friday Prayer) Jumu'ah, Gathering/Assembly/Meeting (Islam) – in Malta with no Islamic connotations Fifth day of the week Borrowed from Germanic languages Or canàbara, cenàbara, cenàbera, cenàbura, cenarba, chenàbara, chenabra, chenapra, chenàpura, chenarpa, chenàura, cianàbara, chenabura; meaning holy supper as preparation to the sabbathday(Saturday)


Saturday

'' Shabbat'' (Sabbath, Jewish and Christian Sabbath) Wash ''or'' Bath day Sun-eve (Eve of Sunday) After the Jumu'ah, Gathering (Islam) End of the Week (
Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walter ...
'rest') Week Half good day Half day


References


Further reading

* * * Neugebauer, Otto (1979). ''Ethiopic astronomy and computus'', Österreichische Akademie der Wissenschaften, philosophisch-historische klasse, sitzungsberichte, 347 (Vienna) {{DEFAULTSORT:Week-Day Names Names of units of time Days of the week, * History of astrology Names, Days of the week Legacy of the Roman Empire