BaZi (八字, 'Eight Characters') — also called the Four Pillars of Destiny — is a Chinese astrological system that maps your birth year, month, day, and hour onto the 60-year cycle of Heavenly Stems and Earthly Branches. The result is a 'blueprint' of your innate strengths, tendencies, and life themes.
Each pillar has a Heavenly Stem (one of ten) and an Earthly Branch (one of twelve). The Year pillar relates to your heritage and early environment; the Month pillar to your career and parents; the Day pillar to your core self and marriage; the Hour pillar to your later years and children.
The Heavenly Stem of the Day pillar is called your Day Master (日主). It determines your elemental nature — Wood, Fire, Earth, Metal, or Water — and how you engage with the world. A Metal day master is often precise and disciplined; a Wood day master is growth-oriented and idealistic.
In BaZi, health and fortune are read through the interaction of the five elements: generating cycles (Wood feeds Fire, Fire makes Earth, Earth bears Metal, Metal produces Water, Water nourishes Wood) and controlling cycles (Water controls Fire, Fire melts Metal, Metal chops Wood, Wood breaks Earth, Earth dams Water). A chart where your Day Master is supported is said to be "strong"; one where it is depleted is "weak" — each has its own strategy for success.
BaZi is often called "the broad stroke" — a general blueprint of character and life direction. Zi Wei Dou Shu (Purple Star Astrology) is "the microscope," a 12-palace chart with 100+ stars offering more granular detail on career, wealth, relationships, and health. Many practitioners recommend both for a complete picture.
Chinese astrology is calculated using true solar time (based on the sun's actual position at your birthplace), not standard clock time. Our engine applies this correction automatically using your location, ensuring your chart is as accurate as possible.