Some factories work on weekends, but they have to work in shifts. If it is acceptable, you can choose a factory. There are no weekends in service industries, such as catering and transportation, but financial services are also closed because the stock market is closed on rest days; In addition, it also has something to do with the workplace. If it is in the urban area, it depends on the background of your company. A powerful big company has high requirements for posts, and it is highly efficient and loaded from Monday to Friday, so it is a weekend. If the company is smaller, it will be required to work on Saturdays if the management can't keep up and the efficiency can't be achieved.
Companies in first-tier cities rarely have weekends, mainly depending on the nature of your posts and the positions.