March 1 and March 3. According to the latest arrangement of Linyi Education Bureau, the start time of spring 2020 is: March 3rd for primary school and March 1 for junior high school. Linyi primary and secondary schools have to prepare a lot of work before they start school in spring. First of all, clean up the campus environment to ensure safety and hygiene; Secondly, improve the teaching arrangement and strengthen the investigation of students' ability level; Finally, formulate health management system and establish health inspection system to ensure the health and safety of students and faculty.