Class hours refer to the study time calculated in hours. For example, it takes 30 class hours to run a training class, with an average of 6 hours and 5 days of study every day. The unit of measurement of education and training time related to "class hours" is "class hours". Class hours refer to the learning time calculated by class hours. It is generally believed that both non-adult education and full-time university education are 40-minute classes. Therefore, if a training task of 30 hours is needed, the effective training time is 30×40= 1200 minutes, 1200/60=20 hours. In addition, we usually don't arrange a break of 10 minutes between classes. So the teaching time in the morning is 8:00~ 12:00***5 classes:

A class is a class.