China's decision to adopt a single timezone was made in 1949, shortly after the People's Republic of China was established.

Prior to this, China had five different time zones, each based on the position of the sun.

However, it was difficult to coordinate transportation and communication between different regions with different time zones
In order to promote unity and communication across the country, the decision was made to adopt a single timezone - Beijing Standard Time, which is based on the time at the capital city.

Despite the fact that this means that some areas of China experience sunrise and sunset at unusual times, the single timezone has been maintained for over 70 years.
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