Week

A week is 7 days in connecting order. There are usually 52 weeks in a year.

In the English language, the days of the week are named after gods in Norse mythology, except for Saturday, which is named after a Roman god.

English name	Abbreviation	Norse mythology	Roman mythology	Old English name
Monday	Mon.	Moon's day		Monnadaeg
Tuesday	Tue.	Tyr's day	Mars	Tiwsdaeg
Wednesday	Wed.	Wodan's (Odin's) day	Mercury	Wodensdaeg
Thursday	Thu.	Thor's day	Jupiter	Thursdaeg
Friday	Fri.	Freyr's day	Venus	Fridaeg
Saturday	Sat.		Saturn's day	Saturnsdaeg
Sunday	Sun.	Sun's day		Sunnadaeg

Depending on the law of a country, the week either starts on Monday and ends on Sunday, or starts on Sunday and ends on Saturday. In most countries, Saturday and Sunday are the weekend. Friday, Saturday, and Sunday is a religious day for Muslims, Jews, and Christians, respectively.

Week Media

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  World map showing the first day of the week used in different countries according to the Common Locale Data Repository     Monday      Friday      Saturday      Sunday

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  An Italian cameo bracelet representing the days of the week by their eponymous deities (mid-19th century, Walters Art Museum)

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  Schematic comparison of the ordering of the classical planets (arranged in a circle) and the sequence of days in the week (forming a {7/3} heptagram within the circle).

Other websites

• The Mysterious 7-Day Cycle (history with Christian editorial) Archived 2005-11-25 at the Wayback Machine
• The Week (part of Claus Tøndering's Calendar FAQ)