What is the time difference between China and the United States?

The time difference between the western United States and China is 16 hours, so if it's 10 in the morning in China, it's 6 o'clock in the afternoon the day before. ?

The time difference between the eastern United States and China is 13 hours, so if it's 10 in the morning in China, it's 9: 00 the night before. ?

In addition, the United States adopts daylight saving time, and summer is one hour earlier than winter, so it depends on summer or winter.

Extended data:

In fact, Beijing time is not the local average solar time in Beijing (1 16.4 E), but the local average solar time 120 E, with a difference of about 16 minutes.

Beijing time was not even determined in Beijing, but was told by nine cesium atomic clocks and two hydrogen maser groups of the National Time Service Center of the Chinese Academy of Sciences in Lintong, Shaanxi, through precise comparison and calculation, and was compared with time service departments around the world in real time through satellites.

The United States adopts the summer and winter dual-time system, one is daylight saving time and the other is winter time (that is, standard time). Daylight saving time is one hour earlier than standard time. The United States began to modify the season in 2007, with daylight saving time on the second Sunday of March and winter time on the first Sunday of 1 1 month. Arizona, Indiana and Hawaii do not use daylight saving time.

From the east coast to the west coast, the United States spans from West Zone 5 to West 10, with six time zones.

1. Eastern Time-Eastern Time (ET) (time in the fifth district of the west) Washington, D.C., new york, Boston, Atlanta, Philadelphia, Miami, etc. All in this time zone.

Second, Central Time-Central Time (CT) (West Sixth District Time)? Chicago, St. Louis, New Orleans and Houston are all in this time zone.

3. Mountain Time-Mountain Time (mt) (West Seventh District Time)? Denver, Phoenix and Salt Lake City are all in this time zone.

4. Pacific Time-Pacific Time Zone (PST) (west eight time) Los Angeles, San Francisco, San Diego, Las Vegas and Seattle are all in this time zone.

5. Alaska-Hawaii Time-Alaska-Hawaii Time (West 9th District Time and West 10th District Time) Alaska and Hawaii are in this time zone.

Beijing time = American time+time difference (because Beijing time is earlier than American time)

References:

Baidu encyclopedia-time difference between China and the United States