Professional Ba Zi Calculator

Construct 'Four Pillars of Destiny' charts based on True Solar Time for deep personality and luck analysis.

Precision of the Pillars of Destiny and Luck

For a Ba Zi expert, the accuracy of the birth time is a critical factor. The system uses VSOP87 algorithms and the IANA database to calculate the chart considering coordinates and historical time zone changes. The model for constructing the Pillars of Destiny (四柱命局) and Luck (大运) strictly complies with classical treatises such as 'The Deep Ocean of Ziping' (淵海子平), 'Drops of Heavenly Essence' (滴天髓), and many others, guaranteeing a foundation free of software simplifications.

Flexible Time Settings

In Qi Chart, you can choose between three modes: local civil time, True Solar Time (considering longitude), and time adjusted for the Equation of Time. The latter option takes into account the elliptical shape of the Earth's orbit, which provides maximum reliability in calculations. All adjustments are transparently displayed in the final calculation for your verification.

Analytics and Compatibility

The interface allows you not only to analyze current periods but also to instantly add a second chart for compatibility analysis. You can see two sets of Pillars in a single window, simplifying comparative element analysis. Integration with your personal account allows you to save each chart to your catalog with professional comments.

For advanced work, you can use the Qi Men Dun Jia Calculator integrated into the system. Results can be printed or saved in your personal account with notes.

Full Control and Data Security

We ensure full control over your information and your 'right to be forgotten'. Any shared chart link can be deactivated by you with a single click. You can also delete or download all your data in HTML or JSON formats. We do not lock you in, providing a tool for free and secure practice.

Questions and Answers

Why is True Solar Time needed? +

Local time is the civil time of a given time zone. True Solar Time reflects the actual astronomical position of the Sun and is critically important in Ba Zi calculations. It is calculated based on birth coordinates, the time zone, and the Equation of Time adjustment.

What is the Equation of Time? +

It is an astronomical correction (up to ±16 minutes) caused by the elliptical orbit of the Earth. In Qi Chart, we recommend enabling the Equation of Time option for highly accurate results, especially in borderline hour or day transitions.

Can a chart be calculated without time adjustments? +

Yes. If you specify only the date and time without selecting a location or the Equation of Time, the system will construct the chart using your entered 'clock' data without automatic corrections.

Can the Ba Zi calculator be used for date selection? +

Yes, by toggling the Pillars of the current date in the interface, you can analyze the interaction between the current date's Pillars and the Ba Zi chart, which is fundamental for individual date selection.