Week
Week
A week is a time unit equal to seven days. It is the standard time period used for cycles of rest days in most parts of the world, mostly alongside—although not strictly part of—the Gregorian calendar.
Etymology and history[edit | edit source]
The English word week comes from the Old English wice, itself from the Proto-Germanic *wikǭ, which is derived from the Proto-Indo-European *weyḱ-.
The seven-day week is known to have been used since antiquity, among the ancient Hebrews and was adopted as part of the Julian calendar in AD 321.
Week structure[edit | edit source]
In many languages, the days of the week are named after classical planets or gods of a pantheon. In English, the names are Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday.
Week numbering[edit | edit source]
Weeks can be numbered in accordance with the ISO 8601 standard, where the first week of the year is the one that includes the first Thursday.
Cultural weeks[edit | edit source]
Different cultures use different week structures. For example, in some Muslim countries, the normal working week begins on Saturday and ends on Wednesday.
See also[edit | edit source]
References[edit | edit source]
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