Yili Paipan calculates a BaZi Four Pillars chart and a Zi Wei Dou Shu chart from a birth date, double-hour slot and gender. A sample chart showed the Four Pillars, Zi Wei's twelve palaces and current major decade together. A yearly/monthly section adds a twelve-month table and an exportable rhythm curve.
Its method and worked-example pages spell out the choices behind the result, including Li Chun for the year boundary, solar terms for months and a 23:00 late-Zi day rollover. The reference library has tables for Ten Gods, hidden stems, twelve stages and branch relationships. Twelve stages are reference material rather than an automatic chart field. Readings translate fixed rules into ordinary language; the site explicitly avoids claiming that an event must happen. One past event can be checked for free, and dated statements can later be marked as met, partly met or unmet.
The basic BaZi and Zi Wei charts are permanently free without registration, and birth details are stored in the browser by default. The site currently advertises a temporary trial for full readings and more validation features, with subscription and credit plans listed for after the trial. The chart interface is available in Simplified and Traditional Chinese. English pages explain the product and method, but link back to the Chinese chart interface. Overseas readers should note that the calculator uses the birth place's local clock time as entered; it does not currently convert time zones or apply true-solar-time correction.
