Editing Soviet calendar (section)

==Five-day weeks==
[[File:Soviet calendar 1930 color.jpg|thumb|right|Soviet calendar, 1930 <br/> Colored five-day work week. Days grouped into seven-day weeks. One national holiday in black, four with white numbers]]
Each day of the five-day week was labeled by either one of five colors or a [[Roman numeral]] from I to V. Each worker was assigned a color or number to identify his or her day of rest.<ref name=kom>[https://www.kommersant.ru/doc/1331342 "Перешли на непрерывку слишком поспешно"], ''Коммерсантъ Власть'', March 12 210</ref><ref>{{cite journal |last1=Shulevitz |first1=Judith |title=Why You Never See Your Friends Anymore |journal=The Atlantic |date=November 2019 |url=https://www.theatlantic.com/magazine/archive/2019/11/why-dont-i-see-you-anymore/598336/ |access-date=10 October 2019}}</ref>

Eighty percent of each factory's workforce was at work every day (except holidays) in an attempt to increase production while 20% were resting. But if spouses, and their relatives and friends, were assigned different colors or numbers, they would not have a common rest day for their family and social life. Furthermore, machines broke down more frequently both because they were used by workers not familiar with them, and because no maintenance could be performed on machines that were never idle in factories with continuous schedules (24 hours/day every day). Five-day weeks (and later six-day weeks) "made it impossible to observe Sunday as a day of rest.<ref name=kom/>

The colors vary depending on the source consulted. The 1930 color calendar displayed here has days of purple, blue, yellow, red, and green, in that order beginning {{nowrap|1 January}}.<ref name=Foss>Clive Foss, "Stalin's topsy-turvy work week", ''History Today'' '''54'''/9 (September 2004) 46–47.</ref> Blue was supported by an anonymous writer in 1936 as the second day of the week, but he stated that red was the first day of the week.<ref name=Riga>The Riga correspondent of the London Times, "Russian experiments", ''Journal of Calendar Reform'' '''6''' (1936) 69–71.</ref> However, most sources replace blue with either {{nowrap|pink,<ref name=Echlin>Erland Echlin, "Here all nations agree", ''Journal of Calendar Reform'' '''8''' (1938) 25–27.</ref><ref name=Parry>Albert Parry, "The Soviet calendar", ''Journal of Calendar Reform'' '''10''' (1940) 65–69.</ref><ref name=Ketchum>Carleton J. Ketchum, "Russia's changing tide", ''Journal of Calendar Reform'' '''13''' (1943) 147–155.</ref><ref name=Holford>Bonnie Blackburn and Leofranc Holford-Strevens, ''The Oxford companion to the year'' (Oxford: Oxford University Press, 1999) 99, 688–689.</ref><ref name=Saga>[http://icalendrier.fr/calendriers-saga/etudes-thematiques/reforme-gregorienne#russie La réforme grégorienne: La réforme en Russie] {{Webarchive|url=https://web.archive.org/web/20221116003252/https://icalendrier.fr/calendriers-saga/etudes-thematiques/reforme-gregorienne#russie |date=16 November 2022 }} (The Gregorian reform: The reform in Russia) {{in lang|fr}}</ref>}} {{nowrap|orange,<ref name=Kingsbury>Susan M. Kingsbury and Mildred Fairchild, ''Factory family and woman in the Soviet Union'' (New York: G.P. Putnam's Sons, 1935) 245–248. Attributes the rest days of six-day weeks to five-day weeks.</ref><ref name=Parise>Frank Parise, ed., "Soviet calendar", ''The book of calendars'', (New York: Facts on file, 1982) 377.</ref><ref name=Richards>E. G. Richards, ''Mapping time'', (Oxford: Oxford University Press, 1998) 159–160, 277–279.</ref>}} or peach,<ref name="Zerubavel">[[Eviatar Zerubavel]], "The Soviet five-day ''Nepreryvka''", ''The seven-day circle'' (New York: Free press, 1985) 35–43.</ref> all of which specify the different order yellow, pink/orange/peach, red, purple, and green. 
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