Date of Health Report of National Government Service Platform

How often is the health report date of the national government service platform updated? According to the relevant information, under normal circumstances, the health code needs to be updated once every three days in the case of green code, and it can be postponed at least after the health code is listed in turn within the validity period, otherwise it will be changed to yellow code, but the regulations on health code are different in different regions. Some areas are updated for a period of time, and some areas have no time limit and do not need to be updated, as the case may be.