From a free Ziwei chart to a reading you can explore
Inspect the chart first
The free chart shows twelve palaces, resident and borrowed stars, transformations and decade context. Every saved annual year appears together without recalculating the birth chart.
Twelve palaces, six annual readings
Explore each of the twelve palaces alongside six annual readings. New complete reports are checked for missing palace sections before delivery; incomplete sections are retried rather than silently omitted. Earlier saved reports remain unchanged.
One place to understand the basis
Open the reading-basis button to see saved chart structure, palace stars, annual context and valid career or wealth references. Opening this overview makes no new AI request; use the report’s deeper follow-up questions when you want to explore a conclusion further.
What the complete report covers
The complete Ziwei reading can cover up to 14 distinct layers, separating chart facts, formal pattern conditions, practical interpretation and timing instead of blending them into one generic narrative.
- Chart core and main axis
- Ziwei patterns and formation conditions
- Strengths and challenges
- Current patterns
- Deeper insight
- Relationships and collaboration
- Career and resources
- Love and intimacy
- Grounded action
- Current decade theme
- Decade and annual cycles
- Six annual readings
- Twelve-palace readings
- Final strategy
Twelve-palace detail, six annual readings and birth-time-dependent material appear only when the saved chart evidence supports them. Missing scope is disclosed rather than guessed, and earlier saved reports remain unchanged.
Coverage checks establish completeness, not the truth of every interpretation. The verification record separately lists calculation tests, school differences and unresolved reference fields. Birth-time range comparison and a multi-school selector are not included in these controls.
How a Zi Wei Dou Shu Calculator Builds a Purple Star Astrology Chart
A Zi Wei Dou Shu calculator converts birth date, time, place, and gender into 12 palaces, star placements, Four Transformations, and timing layers. A chart is easier to verify when the calendar, time correction, day boundary, year boundary, and school rules are visible.
OpenFate stores the rule-based chart before adding AI explanation. Identical birth data is likely to reproduce the same chart only when the calculation conventions also match.
Chart coverage and verification
The free chart makes the 12-palace structure, 14 major stars, Four Transformations, and matching pattern or structure labels available before an AI reading. The registered set contains 34 labels; a particular chart displays only those whose conditions match.
Focused tests cover chart construction, leap months, day boundaries, annual layers, and report contracts. The methodology page explains the scope and limits without publishing private birth data or the full internal rule and test libraries.
1. Enter the Birth Data the Chart Requires
Use the recorded birth date, local clock time, birth place, and gender. Birth place provides longitude and time-zone context; a lunar-calendar record also requires confirmation of leap-month status.
- Birth date: identify Gregorian or lunar input and any lunar leap month.
- Birth time: retain hours and minutes instead of converting an estimate into a fact.
- Birth place: used for longitude, time zone, and historical clock rules.
- Gender: included according to the calculation engine's declared Zi Wei Dou Shu rules.
2. Check the Declared School and Rulebook
The current engine declares the Zhongzhou school in the Wang Tingzhi lineage, the Wang Tingzhi Four Transformations table, a Lunar New Year boundary, and a split-leap-month convention. The page exposes the calculation basis and revision rather than presenting one convention as universal.
Zi Wei Dou Shu schools can disagree. Naming the adopted rule set makes comparison possible; it does not imply that every other school is incorrect.
3. Inspect the Calculated Palaces, Stars, and Cycles
The output shows the Life and Body Palaces, 12-palace structure, 14 major stars and other placements, Four Transformations, decade cycles, and annual cycles. These calculated fields form the evidence layer for any later chart interpretation.
4. Understand True Solar Time and Day Boundaries
True Solar Time adjusts the recorded local time using birth-place longitude and the equation of time. If the adjusted time crosses an hour boundary, hour-dependent palaces or stars may change; crossing a date boundary can affect date-dependent calculations.
OpenFate supports a 23:00 or 00:00 day boundary according to the selected setting. For births near the late Zi hour, compare the active rule before comparing interpretation text.
5. Explain Differences Between Zi Wei Dou Shu Calculators
A disagreement does not automatically prove that one calculator is wrong. Calendar conversion, leap-month handling, year boundary, historical time zone, daylight saving, True Solar Time, day boundary, school, and Four Transformations table can each change the result.
Hold the birth data constant and compare one rule at a time. Find the first difference in the Life Palace, Body Palace, 12 palaces, or major-star placements before comparing written readings.
6. Separate Chart Calculation From AI Interpretation
The engine builds the chart from birth inputs and selected rules. AI only organizes the existing palaces, stars, transformations, and cycles into readable explanations; it should not invent a birth time or silently replace a declared school rule.
Zi Wei Dou Shu is a traditional interpretive system. Reproducible chart calculations do not scientifically validate personality claims or future-event predictions.