2 13 hours. According to Chongqing People's Education Cloud, it takes 2 13 hours to train newcomers, and there are many things to learn during this period. The new textbooks for senior high school in 2020 published by People's Education Publishing House include sociobiology, physics, chemistry, information technology, English, geography, mathematics version A, mathematics version B, fine arts, physical education and health. Online training is required for 10, including compulsory and elective courses, with a total class time of 2 13.