Birth details and time correction
Calculation uses birth date, recorded local birth time, gender and birth city. The city provides longitude and historical time-zone information for True Solar Time correction. Uncertain birth times and hour boundaries can change the chart.
Rule-based calculation
The software calculates palaces, stars, Four Transformations and decade and annual layers using Zi Wei Dou Shu rules. Traditions, time conventions and software implementations can differ. We use the iztro chart library alongside our own time and structure processing.
AI and relationship interpretation
Calculated chart structure is sent as context to an AI model to produce a readable personal or relationship interpretation. The planned question assistant will combine that context with user questions. AI does not independently calculate your chart and may misinterpret structure, miss conditions or generate inaccurate statements.
Use and limitations
Zi Wei Dou Shu is a traditional interpretive system, not a scientifically validated method of predicting the future. Use readings alongside real-world information, not as proof or medical, legal or financial advice. Obtain permission before entering another person’s details.