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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 often mapped against yearly calendars, but are typically not the basis for them, as weeks are not based on astronomy. The modern seven-day week can be traced back to the Babylonians, who used it within their calendar. Other ancient cultures had different week lengths, including ten in Egypt and an eight-day week for Etruscans. The Etruscan week was adopted by the Ancient Romans, but they later moved to a seven-day week, which had spread across Western Asia and the Eastern Mediterranean. In 321 AD, Emperor Constantine officially decreed a seven-day week in the Roman Empire, including making Sunday a public holiday. This later spread across Europe, then the rest of the world. In English, the names of the days of the week are Monday, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Workweek And Weekend
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 the world, the workweek is from Monday to Friday and the weekend is Saturday and Sunday. A weekday or workday is any day of the working week. Other institutions often follow this pattern, such as places of education. The constituted weekend has varying definitions, based on determined calendar days, designated period of time, and/or regional definition of the working week (e.g., commencing after 5:00 p.m. on Friday and lasting until 6:00 p.m. on Sunday). Sometimes the term "weekend" is expanded to include the time after work hours on the last workday of the week (e.g., Friday evening is often referred to as the start of the weekend). In some Christian traditions, Sunday is the " day of rest and worship". The Jewish ''Shabbat'' o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO Week Date
The ISO week date system is effectively a leap week calendar system that is part of the ISO 8601 date and time standard issued by the International Organization for Standardization (ISO) since 1988 (last revised in 2019) and, before that, it was defined in ISO (R) 2015 since 1971. It is used (mainly) in government and business for fiscal years, as well as in timekeeping. This was previously known as "Industrial date coding". The system specifies a ''week year'' atop the Gregorian calendar by defining a notation for ordinal weeks of the year. The Gregorian leap cycle, which has 97 leap days spread across 400 years, contains a whole number of weeks (). In every cycle there are 71 years with an additional 53rd week (corresponding to the Gregorian years that contain 53 Thursdays). An average year is exactly 52.1775 weeks long; months ( year) average at exactly weeks. An ISO week-numbering year (also called ''ISO year'' informally) has 52 or 53 full weeks. That is 364 or 371 days i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Names Of The Days Of The Week
In many languages, the names given to the seven days of the week 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. In some other languages, the days are named after corresponding deities of the regional culture, beginning either with Sunday or with Monday. The seven-day week was adopted in early Christianity from the Hebrew calendar, 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, 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 () a legal holiday. In the international standard ISO 8601, Monday is treated as the first day of the week. Days named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunday
Sunday is the day of the week between Saturday and Monday. In most Western countries, Sunday is a day of rest and a part of the weekend. It is often considered the first day of the week. For most observant adherents of Christianity, Sunday is generally observed as a day of worship and rest, recognising it as the '' Lord's Day'' and the day of Christ's resurrection; in the United States, Canada, Japan, the Philippines as well as in most of South America, Sunday is the first day of the week. According to the Hebrew calendar and traditional calendars (including Christian calendars) Sunday is the first day of the week; Quaker Christians call Sunday the "first day" in accordance with their testimony of simplicity. The International Organization for Standardization ISO 8601, which is based in Switzerland, calls Sunday the seventh day of the week. Etymology The name "Sunday", the day of the Sun, is derived from Hellenistic astrology, where the seven planets, known in E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 day of the week. In most Western countries, Friday is the fifth and final day of the working week. In some other countries, Friday is the first day of the weekend, with Saturday the second. In Israel, Friday is the sixth day of the week. In Iran, Friday is the last day of the weekend, with Saturday as the first day of the working week. Bahrain, the United Arab Emirates (UAE), Saudi Arabia and Kuwait also followed this convention until they changed to a Friday–Saturday weekend on September 1, 2006, in Bahrain and the UAE, and a year later in Kuwait. The UAE changed its weekend from Friday-Saturday to Saturday-Sunday on January 1, 2022. Etymology The name ''Friday'' comes from the Old English ', meaning the "day of Frig", a result of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calendar
A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years. A date is the designation of a single and specific day within such a system. A calendar is also a physical record (often paper) of such a system. A calendar can also mean a list of planned events, such as a court calendar or a partly or fully chronological list of documents, such as a calendar of wills. Periods in a calendar (such as years and months) are usually, though not necessarily, synchronized with the cycle of the sun or the moon. The most common type of pre-modern calendar was the lunisolar calendar, a lunar calendar that occasionally adds one intercalary month to remain synchronized with the solar year over the long term. Etymology The term ''calendar'' is taken from , the term for the first day of the month in the Roman calendar, related to the verb 'to call out', referring to the "calling" of the new moon when it was fir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holy Week
Holy Week ( la, Hebdomada Sancta or , ; grc, Ἁγία καὶ Μεγάλη Ἑβδομάς, translit=Hagia kai Megale Hebdomas, lit=Holy and Great Week) is the most sacred week in the liturgical year in Christianity. In Eastern Churches, which includes Eastern Orthodox, Eastern Catholic and Eastern Lutheran traditions, Holy Week occurs the week after Lazarus Saturday and starts on the evening of Palm Sunday. In the denominations of the Western Christianity, which includes the Roman Catholicism, Lutheranism, Moravianism, Anglicanism, Methodism and Reformed Christianity, it begins with Palm Sunday and concludes on Easter Sunday. For all Christian traditions it is a moveable observance. In Eastern Rite Churches, Holy Week starts after 40 days of Lent and two transitional days, namely Saturday of Lazarus (Lazarus Saturday) and Palm Sunday. In the Western Christian Churches, Holy Week falls on the last week of Lent or Sixth Lent Week. Holy Week begins with the commemoratio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 the second day of the week. The name of Monday is derived from Old English ''Mōnandæg'' and Middle English ''Monenday'', originally a translation of Latin ''dies lunae'' "day of the Moon". Names The names of the day of the week were coined in the Roman era, in Greek and Latin, in the case of Monday as ἡμέρᾱ Σελήνης, ''diēs Lūnae'' "day of the Moon". Many languages use terms either directly derived from these names or loan translations based on them. The English noun ''Monday'' derived sometime before 1200 from ''monedæi'', which itself developed from Old English (around 1000) ''mōnandæg'' and ''mōndæg'' (literally meaning "moon's day"), which has cognates in other Germanic languages, including Old Frisian ''mōna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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's name was introduced into West Germanic languages and is recorded in the Low German languages such as Middle Low German , ''saterdach'', Middle Dutch (Modern Dutch ) and Old English , ''Sæterndæġ'' or . Origins Between the 1st and 3rd centuries AD, the Roman Empire gradually replaced the eight-day Roman nundinal cycle with the seven-day week. The astrological order of the days was explained by Vettius Valens and Dio Cassius (and Chaucer gave the same explanation in his ''Treatise on the Astrolabe''). According to these authors, it was a principle of astrology that the heavenly bodies presided, in succession, over the hours of the day. The association of the weekdays with the respective deities is thus indirect, the days are na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ''See Names of the days of the week for more on naming conventions. '' Thor's day The name is derived from Old English ''þunresdæg'' 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 '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 countries which use the Sunday-first convention, and in both the Islamic and Jewish calendars, Wednesday is the fourth day of the week. In English, the name is derived from Old English and Middle English , 'day of Woden', reflecting the religion practiced by the Anglo-Saxons, the English equivalent to the Norse god Odin. In some other languages, such as the French , Spanish or Italian , the day's name is a calque of Latin 'day of Mercury'. Wednesday is in the middle of the common Western five-day workweek that starts on Monday and finishes on Friday. Etymology :''See Names of the days of the week for more on naming conventions.'' The name Wednesday continues Middle English . Old English still had , which would be continued as ''*Wodnesda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, especially in the United States, Sunday is the first day of the week, so Tuesday is the third day of the week. In Muslim countries, Saturday is the first day of the week and thus Tuesday is the fourth day of the week. The English name is derived from Old English ''Tiwesdæg'' and Middle English ''Tewesday,'' meaning "Tīw's Day", the day of Tiw or Týr, the god of single combat, and law and justice in Norse mythology. Tiw was equated with Mars in the interpretatio germanica, and the name of the day is a translation of Latin ''dies Martis''. Etymology The name ''Tuesday'' derives from the Old English and literally means "Tiw's Day". Tiw is the Old English form of the Proto-Germanic god ''*Tîwaz'', or Týr in Old Norse. ''*Tîwaz'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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