1 Gregorian calendar year = 52 weeks + 1 day (2 days in a leap year).Chinese has 星期, as it were " planetary time unit".Ī week is defined as an interval of exactly seven days, so that, except when passing through daylight saving time transitions or leap seconds,ġ week = 7 days = 168 hours = 10,080 minutes = 604,800 seconds. Slavic has a formation *tъ(žь)dьnь (Serbian тједан, tjedan, Croatian tjedan, Ukrainian тиждень, tyzhden, Czech týden, Polish tydzień), from *tъ "this" + *dьnь "day".
Septimana is cognate with the Romance terms derived from Latin septimana ("seven mornings"). Hebdomad and hebdomadal week both derive from the Greek hebdomás ( ἑβδομάς, "a seven").
The archaism sennight ("seven-night") preserves the old Germanic practice of reckoning time by nights, as in the more common fortnight ("fourteen-night"). The seven-day week is named in many languages by a word derived from "seven". The Germanic word probably had a wider meaning prior to the adoption of the Roman calendar, perhaps "succession series", as suggested by Gothic wikō translating taxis "order" in Luke 1:8. The English word week comes from the Old English wice, ultimately from a Common Germanic * wikōn-, from a root * wik- "turn, move, change". Muslims set their Sabbath to Friday because it was described as a sacred day of worship in the Quran. Some Christians set their Sabbath to Sunday, so as not to coincide with Judaism. The Jewish week ends with nightfall on Saturday, at the conclusion of the Sabbath, following the Hebrew Bible in which God created the world in six days and rested on the seventh. Other regions are mixed, but typically observe either Sunday or Monday as the first day. Most of Europe and China consider Monday the first day of the week, most of North America and South Asia consider Sunday the first day, while Saturday is judged as the first day of the week in much of the Middle East and North Africa.
#Valiant day week list iso#
The Geneva-based ISO standards organization uses Monday as the first day of the week in its ISO week date system through the international ISO 8601 standard. The term "week" may also be used to refer to a sub-section of the week, such as the workweek and weekend.Ĭultures vary in which days of the week are designated the first and the last, though virtually all have Saturday, Sunday or Monday as the first day. More informally, certain groups may advocate awareness weeks, which are designed to draw attention to a certain subject or cause. Certain weeks within a year may be designated for a particular purpose, such as Holy Week in Christianity, Golden Week in China, and National Family Week in Canada. Such a week may be called a planetary week. In many languages, the days of the week are named after gods or planets visible to the eye. In English, the names of the days of the week are Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday. This later spread across Europe, then the rest of the world. In 321 CE, Emperor Constantine officially decreed a seven-day week in the Roman Empire, including making Sunday a public holiday.
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. Other ancient cultures had different week lengths, including ten in Egypt and an eight-day week for Etruscans. The modern seven-day week can be traced back to the Babylonians, who used it within their calendar. Weeks are often mapped against yearly calendars, but are typically not the basis for them, as weeks are not based on astronomy. The days are often used to indicate common work days and rest days, as well as days of worship. It is the standard time period used for short cycles of days in most parts of the world. For other uses, see Week (disambiguation), Weeks (disambiguation), and Weekly (disambiguation).Ī week is a unit of time equal to seven days.
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