The time difference between France and China is 7 hours, although when France is on Daylight Saving Time, the time difference between France and China is 6 hours.

China's standardized time is Eastern 8 (Beijing time), while France's standardized time is Eastern 1 (Paris time), a difference of 7 time zones. If it is 5:00 pm in France, it is 12:00 midnight in China.

Time zones (Time Zone) are regions of the earth that use the same definition of time.

When the International Conference on Longitude was held in Washington, D.C., in 1884, it was stipulated that the globe would be divided into 24 time zones in order to overcome the confusion over time.

In order to overcome the confusion over time, an international conference on longitude (also known as the International Meridian Conference), held in Washington in 1884, stipulated that the globe should be divided into 24 time zones (12 time zones each in the east and west). The United Kingdom (the former site of the Greenwich Observatory) was established as the Central Time Zone (Zero Time Zone), East 1-12, and West 1-12. Each time zone spans 15 degrees of longitude and is exactly one hour long. The final East and West 12th zones each span 7.5 degrees of longitude and are bounded by 180 degrees of East and West longitude. The time on the central meridian of each time zone is the time uniformly adopted within this time zone, called zone time, and the time difference between two neighboring time zones is 1 hour. For example, the time in China's East 8 zone is always 1 hour earlier than the time in Thailand's East 7 zone and 1 hour later than the time in Japan's East 9 zone. Therefore, people traveling abroad must always adjust their watches to match the local time. Where to the west, every time zone, you have to dial the watch 1 hour slower (such as 2 o'clock to 1 o'clock); Where to the east, every time zone, you have to dial the watch 1 hour faster (such as 1 o'clock to 2 o'clock). And the provisions of the United Kingdom (the former site of Greenwich Observatory) for the Prime Meridian, that is, zero degrees longitude.