You Can find also some suggestion that the expression was connected to rustic or improperly educated people today and not with innovative city people. As an example, from Francis Smith, 知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 "In the weekend", "in a weekend" and "at weekends" are Utilized in British English; "over the weekend", https://sexeslive.com/