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 that adopt the "Sunday-first" convention, it is the fifth day of the week.
Name.
"See Names of the days of the week for more on naming conventions. "
Thor's day.
The name is derived from Old English "Þūnresdæg" and Middle English "Thuresday" (with loss of -n-, first in northern dialects, from influence of Old Norse "Þórsdagr") meaning "Thor's Day". It was named after the Norse god of Thunder, Thor. "Thunor, Donar" (German, "Donnerstag") and "Thor" are derived from the name of the Germanic god of thunder, "Thunraz", equivalent to Jupiter in the "interpretatio romana".
In most Romance languages, the day is named after the Roman god Jupiter, who was the god of sky and thunder. In Latin, the day was known as "Iovis Dies", "Jupiter's Day". In Latin, the genitive or possessive case of Jupiter was "Iovis"/"Jovis" and thus in most Romance languages it became the word for Thursday: Italian "giovedì", Spanish "jueves", French "jeudi", Sardinian jòvia, Catalan "dijous", Galician "xoves" and Romanian "joi". This is also reflected in the p-Celtic Welsh "dydd Iau".
The astrological and astronomical sign of the planet Jupiter (♃) is sometimes used to represent Thursday.
Since the Roman god Jupiter was identified with Thunor (Norse Thor in northern Europe), most Germanic languages name the day after this god: "Torsdag" in Danish, Norwegian, and Swedish, "Hósdagur"/"Tórsdagur" in Faroese, "Donnerstag" in German or "Donderdag" in Dutch. Finnish and Northern Sami, both non-Germanic (Uralic) languages, uses the borrowing "Torstai" and "Duorastat". In the extinct Polabian Slavic language, it was "perundan", Perun being the Slavic equivalent of Thor.
Vishnu's/Buddha's/Dattatrey's Day.
There are a number of modern names imitating the naming of Thursday after an equivalent of "Jupiter" in local tradition. 
In most of the languages of India, the word for Thursday is "Guruvāra" – "vāra" meaning day and "Guru" being the style for Bṛhaspati, guru to the gods and regent of the planet Jupiter. This day marks the worship of Lord Vishnu/Lord Buddha and Lord Dattatreya in Hinduism. In Sanskrit language, the day is called Bṛhaspativāsaram (day of Bṛhaspati). In Nepali language, the day is called "Bihivāra" as derived from the Sanskrit word same like in Hindi vara means day and Bihivāra meaning Bṛhaspati. In Thai, the word is "Wan Pharuehatsabodi" , also in Old Javanese as "Respati" or in Balinese as "Wraspati" – referring to the Hindu deity Bṛhaspati, also associated with Jupiter.
En was an old Illyrian deity and in his honor in the Albanian language Thursday is called "Enjte". 
In the Nahuatl language, Thursday is () meaning "day of Tezcatlipoca".
In Japanese, the day is (木 represents Jupiter, 木星), following East Asian tradition.
Fourth day.
In Slavic languages and in Chinese, this day's name is "fourth" (Slovak "štvrtok", Czech "čtvrtek", Slovene "četrtek", Croatian and Bosnian "četvrtak", Polish "czwartek", Russian четверг "chetverg", Bulgarian четвъртък, Serbian четвртак, Macedonian четврток, Ukrainian четвер "chetver"). Hungarian uses a Slavic loanword "csütörtök". In Chinese, it is "xīngqīsì" ("fourth solar day"). In Estonian it's "neljapäev", meaning "fourth day" or "fourth day in a week". The Baltic languages also use the term "fourth day" (Latvian "ceturtdiena", Lithuanian "ketvirtadienis").
Fifth day.
Greek uses a number for this day: Πέμπτη "Pémpti" "fifth," as does "fifth day," Hebrew: ("Yom Khamishi" – day fifth) often written ("Yom Hey" – 5th letter Hey day), and Arabic: ("Yaum al-Khamīs" – fifth day). Rooted from Arabic, Indonesian word for Thursday is "Kamis", similarly "Khamis" in Malaysian and "Kemis" in Javanese.
In Catholic liturgy, Thursday is referred to in Latin as "feria quinta". Portuguese, unlike other Romance languages, uses the word "quinta-feira," meaning "fifth day of liturgical celebration", that comes from the Latin "feria quinta" used in religious texts where it was not allowed to consecrate days to pagan gods.
Icelandic also uses the term "fifth day" ("Fimmtudagur").
In the Persian language, Thursday is referred to as "panj-shanbeh", meaning 5th day of the week.
Vietnamese refers to Thursday as (literally means "day five").
Quakers traditionally referred to Thursday as "Fifth Day" eschewing the pagan origin of the English name "Thursday".
Cultural and religious practices.
Christian holidays.
In the Christian tradition, Maundy Thursday or Holy Thursday is the Thursday before Easter — the day on which the Last Supper occurred. Also known as "Sheer Thursday" in the United Kingdom, it is traditionally a day of cleaning and giving out Maundy money there. Holy Thursday is part of Holy Week.
In the Eastern Orthodox Church. Thursdays are dedicated to the Apostles and Saint Nicholas. The Octoechos contains hymns on these themes, arranged in an eight-week cycle, that are chanted on Thursdays throughout the year. At the end of Divine Services on Thursday, the dismissal begins with the words: "May Christ our True God, through the intercessions of his most-pure Mother, of the holy, glorious and all-laudable Apostles, of our Father among the saints Nicholas, Archbishop of Myra in Lycia, the Wonder-worker…"
Ascension Thursday is 40 days after Easter, when Christ ascended into Heaven.
Islam.
In Islam, Thursdays are one of the days in a week in which Muslims are encouraged to do voluntary fasting, the other being Mondays. There are a number of Hadith which narrated of prophet Muhammad fasting on these days.
Judaism.
In Judaism, Thursdays are considered auspicious days for fasting. The Didache warned early Christians not to fast on Thursdays to avoid Judaizing, and suggested Fridays instead.
In Judaism the Torah is read in public on Thursday mornings, and special penitential prayers are said on Thursday, unless there is a special occasion for happiness which cancels them.
Practices in Countries.
In Buddhist Thailand Thursday is considered the "Teacher's Day", and it is believed that one should begin one's education on this auspicious day. Thai students still pay homages to their teachers in specific ceremony always held on a selected Thursday. And graduation day in Thai universities, which can vary depending on each university, almost always will be held on a Thursday.
In the Thai solar calendar, the colour associated with Thursday is orange.
In the United States, Thanksgiving Day is an annual festival celebrated on the fourth Thursday in November.
In Finland and Sweden, pea soup is traditionally served on Thursdays.
Conventional weekly events.
In Australia, most cinema movies premieres are held on Thursdays. Also, most Australians are paid on a Thursday, either weekly or fortnightly. Shopping malls see this as an opportunity to open longer than usual, generally until 9 pm, as most pay cheques are cleared by Thursday morning.
In Norway, Thursday has also traditionally been the day when most shops and malls are open later than on the other weekdays, although the majority of shopping malls now are open until 8 pm or 9 pm every weekday.
In the USSR of the 1970s and 1980s Thursday was the "Fish Day" (, "Rybny den"), when the nation's foodservice establishments were supposed to serve fish (rather than meat) dishes.
For college and university students, Thursday is sometimes referred to as the new Friday. There are often fewer or sometimes no classes on Fridays and more opportunities to hold parties on Thursday night and sleep in on Friday. As a consequence, some call Thursday "thirstday" or "thirsty Thursday".
Elections in the United Kingdom.
In the United Kingdom, all general elections since 1935 have been held on a Thursday, and this has become a tradition, although not a requirement of the law — which merely states that an election may be held on any day "except Saturdays, Sundays, Christmas Eve, Christmas Day, Good Friday, bank holidays in any part of the United Kingdom and any day appointed for public thanksgiving and mourning."
Additionally, local elections are usually held on the first Thursday in May.
The Electoral Administration Act 2006 removed Maundy Thursday as an excluded day on the electoral timetable, therefore an election can now be held on Maundy Thursday; prior to this elections were sometimes scheduled on the Tuesday before as an alternative.