How often does the website of the Immigration Bureau update the reservation time in Shanghai?

1 day. The retention time of immigration information is 1 day, which is updated once to ensure that users can see it at any time. The National Immigration Bureau was established according to the institutional reform plan of the State Council approved by the First Session of the 13th National People's Congress, and is managed by People's Republic of China (PRC) and the Ministry of Public Security. On April 2, 20021year, the National Immigration Bureau launched the team flag and team emblem.