202 1 Relevant departments issued the Notice on Further Strengthening the Sleep Management of Primary and Secondary School Students to adjust the class hours of primary and secondary schools. Among them, the primary school class time is not earlier than 8:20, and the junior high school class time is not earlier than 8:00. This policy is expected to be fully implemented in September this year and has been implemented in some areas.

The new regulations are expected to be fully implemented in the fall of 2022. At the end of 20021,Cangzhou Education Bureau stipulated that the school should arrive at school no earlier than 7:30 in the morning and attend classes no earlier than 8:00 (the school should not organize unified education and teaching activities before 8:00 according to the requirements of higher-level documents).