July 1 to July 12. According to official website's information of Handan Education Bureau, the city's student registration website will be closed for system maintenance every year, and the closing time will be from July 1 day to July 12 in 2023. Student information network is an online network established by the school to facilitate the management of students' information, which allows students, parents and teachers to conveniently inquire and manage students' personal information, curriculum, examination results and so on.