You can also call the local police station in advance to confirm the correct time, and then bring the household registration book to the police station within your jurisdiction.
Law of the People's Republic of China on Resident Identity Cards Citizens shall, within three months from the date of reaching the age of 16, apply to the public security organ where their permanent residence is located for a resident identity card. Citizens under the age of 16 shall apply for resident identity cards by guardians. The resident identity card shall be issued by the public security organ of the people's government at the county level where the permanent residence is located. To apply for a resident identity card, you should fill in the registration form of the resident identity card and submit the household registration book.