Yeah, China is pretty bad. There is a cool map that shows the "errors" between local time and "ideal": https://en.wikipedia.org/wiki/Time_zone#/media/File:Solar

Yeah, China is pretty bad. There is a cool map that shows the "errors" between local time and "ideal": https://en.wikipedia.org/wiki/Time_zone#/media/File:Solar_time_vs_standard_time.png https://en.wikipedia.org/wiki/Time_zone#/media/File:Solar_ti...