Geographically, China covers five time zones (Zhongyuan, Longshu, Tibet, Kunlun and Changbai Time Zones). However, the standard times used in Chinese Mainland, Hong Kong, Macau , and Taiwan Province are the same, for they are all in the same time zone (UTC+8), 8 hours ahead of the Universal Time Coordinated.Why is China all in one time zone?
Because of a legacy of Mao Zedong and the Communist Party's desire for unified control . Though China is almost as wide as the continental United States, the whole country is officially in just one time zone - Beijing time.How many time zones are there in China?
China is a vast country, yet it has only one time zone, called Beijing Standard Time (BST), or China Standard Time (CST), which is Greenwich Mean Time, plus 8 hours (GMT+8). Though it used to consist of five time zones, the Communist government changed the country to only one in the late 1940s as part of an effort to streamline it.