What do you mean by the hotel's monthly holiday 12 days?

It means continuous rest for one month 12 days.

This kind of work is generally a work system under shift duty and special work modes such as remote areas, crew members and navigators. Some people like this mode of work, but most people don't, because working for 20 days in a row can't take care of their families and their lives are irregular.

Another advantage of this model is that you have a fixed chunk of your own time every month. If you like, you can use this 12 day to achieve your other career. For example, people from the media, business people, travelers, craftsmen, e-commerce operators and so on. You can operate remotely at work at ordinary times, and you can actually operate on 12 rest days. Good pattern.