What time is the regular flight?

There is no fixed time for class. In ancient times, the regular class refers to the regular class, which refers to the soap, strong and fast classes, in a crisis or the old official bureau. Nowadays, people who work more than eight hours in society are called regular classes. Under normal circumstances, employers will write such words when recruiting.

Source:

In the Southern Dynasties, Chen's "Let the scattered riders serve the table": "If you make a mistake, you can really cross the class." Liu Tang's confidant "Stone Yu Shi": "If you are a servant, you will go to work earlier." Song Luyou's Book Received by the Crown Prince Congratulates the Queen: "I will go to class and stay in my hometown for a long time." Li Dongyang in the Ming Dynasty wrote "Liu Tongdai Guangping Judge Man Wen Zhang Hua": "The name is changed to new, and the class stops." Back to the fifteenth chapter of "The Official Appearance": "At this time, the classes are on both sides of the official building, and the lanterns and torches in the class shine like day."