This hotel changes the elevator’s carpet on a daily basis, to match the day of the week. It seems like an awful lot of work and a weird way to let their guests know what day it is. Also, the core idea here is flawed; when you’re on vacation, you don’t need or want to know what day it is. That’s the point of being on vacation.
More than anything else, this carpet design seems unnecessary. People don’t need to be reminded what day it is every time they step inside the elevator. What would be the next step? Embroidering the date on the carpet? We don’t know how people come up with these ideas, but they sure are creative.