Who knows the office hours of patent offices? Urgent! thank you

Patent offices are commercial, and some are manned on weekends. However, since the patent office doesn't work on weekends, most firms don't work either. Our company works strictly according to legal holidays. Working hours must be here. 9: a.m. to 5: a.m. It must be there. If you can't find anyone today, let's contact tomorrow. Take your time. You can also ask me if you have any questions.