Editing Week (section)

===Pre-modern===
Calendars unrelated to the Chaldean, Hellenistic, Christian, or Jewish traditions often have time cycles between the day and the month of varying lengths, sometimes also called "weeks".

An [[eight-day week]] was used in [[Roman calendar#Nundinal cycle|Ancient Rome]] and possibly in the pre-Christian [[Celtic calendar]]. Traces of a nine-day week are found in Baltic languages and in [[Welsh language|Welsh]]. The ancient Chinese calendar had a [[Chinese ten-day week|ten-day week]], as did the ancient [[Egyptian calendar]] (and, incidentally, the [[French Republican Calendar]], dividing its 30-day months into thirds).

A six-day week was used in the [[Akan calendar]] and [[Kabye people|Kabiye]] culture in [[West Africa]] until 1981. Several cultures used a five-day week, including the 10th century [[Icelandic calendar]], the [[Javanese calendar]], and the traditional cycle of market days in [[Korean culture|Korea]].{{Citation needed|date=July 2015}} The [[Igbo Culture#Calendar (Iguafo Igbo)|Igbo]] have a "market week" of four days. Evidence of a "three-day week" has been derived from the names of the days of the week in [[Guipuscoan Basque]].<ref name="Knorr">''[http://dialnet.unirioja.es/servlet/fichero_articulo?articulo=26362&orden=59718 Astronomy and Basque Language]'', [[Henrike Knörr]], ''Oxford VI and SEAC 99 "Astronomy and Cultural Diversity"'', [[San Cristóbal de La Laguna|La Laguna]], June 1999. It references [[Alessandro Bausani]], 1982, ''The prehistoric Basque week of three days: archaeoastronomical notes'', ''The Bulletin of the [[Center for Archaeoastronomy]]'' (Maryland), v. 2, 16–22.
1. ''astelehena'' ("week-first", Monday), 2. ''asteartea'' ("week-between", Tuesday), 3. ''asteazkena'' ("week-last", Wednesday).</ref>

The Aztecs and Mayas used the [[Mesoamerican calendars]]. The most important of these calendars divided a ritual cycle of 260 days (known as ''[[Tonalpohualli]]'' in [[Nahuatl]] and ''[[Tzolk'in]]'' in [[Yucatec Maya]]) into 20 weeks of 13 days (known in Spanish as [[trecena]]s). They also divided the solar year into 18 periods (''winal'') of 20 days and five nameless days (''wayebʼ''), creating a 20-day month divided into four five-day weeks. The end of each five-day week was a market day.{{sfnp|Zerubavel|1989|loc=[https://books.google.com/books?id=Cd5ZjRsNj4sC&pg=PA50 pp. 50–54]}}<ref>{{cite web |url=http://www.aztec-history.com/aztec-calendar-stone.html |title=Aztec calendar stone |website=aztec-history.com}}</ref>

The Balinese [[Pawukon]] is a 210-day calendar consisting of 10 different simultaneously running weeks of 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 days, of which the weeks of 4, 8, and 9 days are interrupted to fit into the 210-day cycle.