The time zone of China is Dongba District, and the time difference with Dongba District is 15 hours (after 15 hours), which is Xiqi District. West Zone 7 is a mountainous time zone in the United States.
Major states include Montana, Idaho, Wyoming, Utah, Colorado, Arizona and New Mexico.
Major cities include: Salt Lake City, Denver and Phoenix.
Beijing time is the standard time for China to adopt Beijing Dongba time zone. Beijing time is not Beijing time (1 16.4), but local time 120. Because Beijing is located in the East Eighth District, which is divided into international time zones, the difference between Beijing time and Greenwich Mean Time (UTC) is 8 hours (that is, Beijing time = UTC +8 hours), and the time service station in China, which spans five time zones (that is, East Fifth District, East Sixth District, East Seventh District, East Eighth District and East Ninth District), must be built in the center, so long-short wave teaching has emerged. The broadcast location of Beijing Time is not in Beijing, but in Pucheng, Weinan. Beijing time is not "Beijing time", but local solar time of 120 degrees east longitude, which is about 14 and a half minutes earlier than Beijing local time.
The Time Service Department (Part II) of the National Time Service Center of Chinese Academy of Sciences is located in pucheng county, Weinan City, Shaanxi Province, and is responsible for publishing Beijing time (China Standard Time).
The National Time Service Center of Chinese Academy of Sciences (Part I) is located in Lintong District, Xi, Shaanxi Province.