For 11 Years, the Soviet Union Had No Weekends - HISTORY
The ordinary seven-day week now had a new bedfellow: the nepreryvka, or “continuous working week.” It was five days long, with days of rest staggered across the week. Now, the Soviet economist and politician Yuri Larin proposed, the machines need never be idle.
The nepreryvka was supposed to revolutionize the concept of labor, set a match to productivity and make religious worship too troublesome to be worth the effort. But it failed on virtually every count. Adjustments were made and in 1931, the cycle was extended to last six days. After 11 years of trial and error, the project was axed in June, 1940.