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Return to Names of the Days of the Week, Weekday, Week, Months, History, Years, Time

Monday (Mon), Tuesday (Tue), Wednesday (Wed), Thursday (Thur, Thurs), Friday (Fri), Saturday (Sat), Sunday (Sun)

Snippet from Wikipedia: Week

A week, in the Western and international context, is a unit of time equal to seven days. It is the standard calendrical period between a day and a month in most parts of the world. There are just over 52 weeks in a year, or on average 4+1⁄3 weeks in a month. The days of the week are often used to set work days, rest days, and holy days. The term "week" may also be used to refer to a sub-section of the week, such as the workweek and weekend. Certain weeks within a year may be designated for a particular purpose, such as Golden Week in China and Japan. More informally, certain groups may advocate awareness weeks, such as National Family Week in Canada, which are designed to draw attention to a certain subject or cause.

Some ancient and traditional cultures have or had different week lengths, including ten days in Egypt, an eight-day week for Etruscans and ancient Romans, and four- or five-day weeks between market days in modern West Africa. (See also the Japanese ten-day jun, used alongside the 7-day week.) The Romans later switched 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 was rooted in the 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 spread across Europe, then the rest of the world.

In many languages, including English, the days of the week are named after the classical planets or the gods identified with those planets. In English, the days use Germanic equivalents of the Roman names, apart from Saturday which had no equivalent: Monday (Luna/moon day), Tuesday (Mars/Tiw's day), Wednesday (Mercury/Woden's day), Thursday (Jupiter/Thor's day), Friday (Venus/Friga's day), Saturday (Saturn day) and Sunday (Sol/sun day). A week with such names has been called a planetary week.

Cultures 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.

The three Abrahamic religions observe different days of the week as their holy day. Jews observe their Sabbath (Shabbat) on Saturday, the seventh day, from sundown Friday to sundown Saturday, in honor of God's creation of the world in six days and then resting on the seventh. Most Christians observe Sunday (the Lord's Day), the first day of the week in traditional Christian calendars, in honor of the resurrection of Jesus. Muslims observe their "day of congregation", known as yaum al-jum`ah, on Friday because it was described as a sacred day of congregational worship in the Quran.

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