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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. There are just over 52 weeks in a year. The term "week" may also be used to refer to a sub-section of the week, such as the workweek and weekend. Ancient cultures had different "week" lengths, including ten days in Egypt and an eight-day week for Etruscan civilization, Etruscans. The Etruscan week was adopted by the Ancient Rome, ancient Romans, but they later moved to a seven-day week, which had spread across Western Asia and the Eastern Mediterranean due to the influence of the Christian seven-day week, which is rooted in the Jews, Jewish seven-day week. In AD 321, Emperor Constantine the Great officially decreed a seven-day week in the Roman Empire, including making Sunday a public holiday. This later ... [...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. Weekdays and workdays can be further detailed in terms of working time, the period of time that an individual spends at paid occupational labor. In many Christian tra ... [...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 4.348125 weeks/month. An ISO week-numbering year (also called ''ISO year'' informally) has 52 or 53 full weeks. That is 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Names Of The Days Of The Week
In a vast number of 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 internundinum. Sunday remained the first day of the week, being considered the day of the sun god Sol Invictus and the Lord's Day, while the Jewish Sabbath remained the seventh. The Babylonians invented the actual seven-day week in 600 BCE, with Emperor Constantine making the Day of the Sun (, "Sunday") a legal holiday centuries later. In the international standard ISO 8601, Mon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabbath
In Abrahamic religions, the Sabbath () or Shabbat (from Hebrew ) is a day set aside for rest and worship. According to the Book of Exodus, the Sabbath is a day of rest on the seventh day, Ten Commandments, commanded by God to be kept as a Holiday, holy day of rest, as God rested from Genesis creation narrative, creation. Sabbath (Shabbat) observance is commanded in the Ten Commandments: "Remember the sabbath day, to keep it holy". The Sabbath might have been influenced by Babylonian mid-month rest days and lunar cycles, though its origins remain debated. The Sabbath is observed in Judaism, Islam, and by some Christian groups. Observances similar to, or descended from, the Sabbath also exist in other religions. The term may be generally used to describe similar weekly observances in other religions. Origins A number of scholars propose a cognate Akkadian language, Akkadian word ''šapattu'' or ''šabattu'', which refers to the day of the full moon. A lexicographic list found i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunday
Sunday (Latin: ''dies solis'' meaning "day of the sun") is the day of the week between Saturday and Monday. Sunday is a Christian sabbath, day of rest in most Western countries and a part of the Workweek and weekend, weekend. In some Middle East, Middle Eastern countries, Sunday is a weekday. For most Christians, Sunday is observed as a day of worship and rest, holding it as the Lord's Day and the day of Christ's resurrection; in the United States, Canada, Japan, as well as in parts of South America, Sunday is the first day of the week. According to the Islamic calendar, 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."Monday shall be identified as calendar day [1] of any calendar week, and ... [...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 8601-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 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. In Israel, by Jewish tradition, Friday is the sixth day of the week, and the last working day. Etymology In the seven-day week introduced in the Roman Empire in the first century CE, the days were named after the classical planets of H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. The standard provides a well-defined, unambiguous method of representing calendar dates and times in worldwide communications, especially to avoid misinterpreting numeric dates and times when such data is transferred between countries with different conventions for writing numeric dates and times. ISO 8601 applies to these representations and formats: ''dates'', in the Gregorian calendar (including the proleptic Gregorian calendar); ''times'', based on the 24-hour timekeeping system, with optional UTC offset; '' time intervals''; and combinations thereof.ISO 8601:2004 section 1 Scope The standard does not assign specific meaning to any element of the dates/times represented: t ... [...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 calendar date, 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 solar calendar, sun or the lunar calendar, 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 " ... [...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 god Saturn. His planet, Saturn, 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 day ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monday
Monday is the day of the week that takes place between Sunday and Tuesday. According to the International Organization for Standardization's ISO 8601 standard, it is the first day of the week. Names The names of the day of the week were coined in the Roman Empire, Roman era, in Greek language, Greek and Latin, in the case of Monday as ἡμέρᾱ Selene, Σελήνης, ''diēs Lūnae'' "day of the Moon". Many languages use either terms 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 ''mōnadeig'', Middle Low German and Middle Dutch ''mānendag, mānendach'' (modern Dutch language, Dutch ''Maandag''), Old High German ''mānetag'' (modern German language, German ''Montag''), and Old Norse '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shabbat
Shabbat (, , or ; , , ) or the Sabbath (), also called Shabbos (, ) by Ashkenazi Hebrew, Ashkenazim, is Judaism's day of rest on the seventh day of the seven-day week, week—i.e., Friday prayer, Friday–Saturday. On this day, religious Jews remember the biblical stories describing the Genesis creation narrative, creation of the heaven and earth in six days and the redemption from slavery and the Exodus from Egypt. Since the Hebrew calendar, Jewish religious calendar counts days from sunset to sunset, Shabbat begins in the evening of what on the civil calendar is Friday. Shabbat observance entails refraining from 39 Melachot, work activities, often with shomer Shabbat, great rigor, and engaging in restful activities to honor the day. Judaism's traditional position is that the unbroken seventh-day Shabbat originated among the Jewish people, as their first and most sacred institution. Variations upon Shabbat are widespread in Judaism and, with adaptations, throughout the Abraham ... [...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 English, the name is derived from Old English and Middle English , 'day of Woden', reflecting the religion practised by the Anglo-Saxons, the English equivalent to the Norse god Odin. In many Romance 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 The name Wednesday continues Middle English . Old English still had , which would be continued as ''*Wodnesday'' (but Old Frisian has an attested ). By the early 13th century, the ''i''-mutated form was introduced unetymologically. The name is a calque of the Latin 'day of Mercury', reflecting the fact that the Germanic god Woden (Wodanaz or Odin) during the Roman era was interpreted as "Ger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
