How many time zones does China have?
Explanation
China officially has only one time zone, which is Beijing Standard Time (BST). Despite the vast size of the country, the Chinese government decided to unify time across the entire nation to promote unity and facilitate administrative efficiency. This decision was made in 1949, aiming to eliminate the confusion and difficulties associated with operating different time zones in a single country. However, this means that certain parts of China, especially those in the western region, experience significant differences in daylight hours compared to their actual local time.