Enter your birth date, time, place, and gender to create a Zi Wei Dou Shu chart. Review the Life and Body Palaces, 12 palaces, 14 major stars, Four Transformations, decade cycles, and declared calculation settings.
12 Palaces · Life stage & pivotal arenas
All testimonials come from account users; some have verified their accounts, generated reports, or completed purchases.
Each tool begins with declared inputs and deterministic rules. Birth-chart systems keep their calculated structure visible; AI explains those results without rewriting the underlying facts.
Birth details, questions, selections, or cast inputs are normalized for the relevant tool.
Each tool produces its chart, draw, cast, or core facts from its declared rules.
AI interprets the visible facts and structure without changing the deterministic inputs.
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Interpret the Life and Body Palaces, palace relationships, stars, Four Transformations, decade cycles, and annual cycles without mixing chart facts with explanation.
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A production-grade Bazi calculation server for Claude, Cursor, Codex, Cline, and every MCP-compatible AI agent.
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About OpenFate
Enter your birth date, local time, place, and gender to create a free Zi Wei Dou Shu chart without signing up. The result includes the Life and Body Palaces, 12 palaces, 14 major stars, Four Transformations, decade and annual cycles, plus the True Solar Time, calendar, day-boundary, and school settings used for the calculation.
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.
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.
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.
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.
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.
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.
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.
Answers about free chart creation, required birth data, True Solar Time, calendars, day boundaries, school differences, and AI interpretation.
Yes. You can create and inspect the basic Zi Wei Dou Shu chart without signing up. AI interpretation and follow-up questions are a separate step and may require an account and reading credits.
It needs the birth date, recorded local time, birth place, and gender. If the source record uses a lunar date, also confirm leap-month status. Birth place is used to match longitude, historical time zone, and possible daylight-saving rules.
A missing birth time prevents confirmation of the hour-dependent palaces and star placements. Do not enter noon or midnight simply to obtain a complete-looking chart; preserve the uncertainty and compare plausible candidate hours.
No. True Solar Time adjusts the recorded time using birth-place longitude and the equation of time. Chart fields may change only when that correction crosses an hour or date boundary used by the calculation.
Yes. The calendar input must be converted correctly, including a lunar leap month when applicable. OpenFate also declares its Lunar New Year boundary and split-leap-month rule so you can compare the same convention across calculators.
Common causes include birth place, historical time zone or daylight saving, True Solar Time, a 23:00 versus 00:00 day boundary, lunar leap-month handling, year boundary, school, and Four Transformations table. Align the inputs and rules before comparing placements.
No. The chart engine calculates the palaces, stars, transformations, and timing layers first. AI can explain that existing output later, but it does not freely rewrite the calculated chart.
