Chinese and western Astrology are both systems of divination that are based on date and time of birth. And although both traditions rely heavily on symbols to communicate their theories, each differs substantially. Here's a crash course in understanding the differences between the two systems. Quite often, people will identify with one more strongly, but still ascribe to some of the other tradition's beliefs -- mix and match at will! You can compare your Essential Birth Chart Report to your Essential Chinese Astrology Profile to get a personal look at how Chinese and western Astrology really differ. Time frame Chinese Astrology divides astrological signs by years, whereas western Astrology separates them by months. Therefore, the Chinese believe that people born in the same year share the same traits, whereas westerners group people on a month-by-month basis. This difference in sensibilities makes sense for each culture, as eastern societies play great emphasis on g...