Western Astrologers utilize the Tropical Zodiac to find out the zodiac signs, AKA your Sun sign. This is actually the method that relies over the seasons not the constellations. 27 days and 7 hrs is some time required because of the moon to choose an entire revolution within the Earth. https://tysonklsyq.buscawiki.com/1700595/cosmic_life_span_calculator_for_dummies