TRUE SOLAR TIME UPGRADEDMinute-level birthplace correction. Near a shichen boundary? Confirm the exact time.

OFFICIAL CHATGPT ASSISTANT

Cast your chart inside ChatGPT

Most assistants answer a Zi Wei Dou Shu question by describing the system. Ours casts the actual chart — it calls the same calculation engine this site runs on, so the palaces you get in chat are the palaces you get here.

Open the assistant in ChatGPT →

How to use it

  1. 1Open the assistantIt is a public GPT — no key, no signup with us.
  2. 2Give it your birth detailsDate, time (or the two-hour 时辰) and the city you were born in. Birthplace matters: the chart is corrected to true solar time, which depends on longitude.
  3. 3Read the chart it castsMain star and its rarity, all twelve palaces, the Four Pillars, your Day Master and the five-element balance.

Where the readings come from

The chart itself is calculated, not generated — the same deterministic engine, from the same birth data, returns the same chart every time. The interpretations this site publishes are rule-based on 15 classical texts rather than written fresh by a language model; the full bibliography is public.

See the source list at /sources, or the calculation endpoint the assistant calls at /api-docs.

What it will not do

  • · It casts the chart and explains the structure. The chapter-by-chapter written reading is a separate paid product on this site, and the assistant will point you here rather than improvise one.
  • · It quotes no prices. Sign in here to see what a reading costs; nothing is charged inside ChatGPT.
  • · It stores nothing. Birth details sent to the calculation endpoint are used for that one chart and never written to our database.
  • · Zi Wei Dou Shu and BaZi are traditional symbolic systems offered for reflection, not verified prediction.