Free tool
Bazi chart
Enter birth details, confirm location and time conventions, then explore pillars, Ten Gods, hidden stems, and luck cycles.
Supports unknown birth time, solar terms, and true-solar-time notices
Create free chartAI guidance grounded in a deterministic Bazi chart
Understand your Bazi and Four Pillars of Destiny
Start with birth time, location, and solar-term boundaries. Build a traceable Bazi chart from the Four Pillars of Destiny, then use AI to organize facts, interpret patterns, and plan your next step.
- No sign-in required
- True solar time and historical zones
- Private data stays protected
Three paths, one consistent chart
Establish the facts before interpreting them
Chart results, AI conversations, and annual reports stay attached to the Bazi data used at that moment, so your context remains consistent.
Personal guidance
AI Bazi reading
Ask questions against a selected chart. AI interprets confirmed facts without recalculating your chart.
One credit is used only after a successful answer
Explore AI readingReturn anytime
Annual outlook
Generate a year-long view from an immutable chart snapshot and read each chapter online whenever you need it.
Online reading only, with no PDF export
View annual reportsCalculation clarity
Interpretation is only useful when the inputs are traceable
Birthplace, historical time zones, solar terms, and day-boundary rules can change the pillars. We preserve the calculation basis before any interpretation begins.
- 1900–2100
- Supported years
- 23:00
- Traceable day boundary
- 16 rules
- Core Shen Sha set
VERIFIABLE CALCULATION METHOD
Every step from input to Four Pillars stays traceable
This public demonstration test case shows how time and location are standardized before a reproducible Four Pillars result is produced.
Demonstration input
Gregorian 2000-02-29 23:30 · Hong Kong · Male · True solar time
Public demonstration test case, not real user data. The demonstration input only explains the calculation process and is not included in Schema, Meta, URLs, or social sharing images.- 01
Standardize the input
Confirm the Gregorian date, birth time, location, and calculation sex.
- 02
Correct the time
Apply Hong Kong historical time-zone data, longitude, and the equation of time.
- 03
Check boundaries
Compare the solar-term boundary and apply the 23:00 day-boundary rule.
- 04
Version the result
Record algorithm, rule, and data versions so the same input remains reproducible.
Deterministic Four Pillars result
- Year
- Geng-Chen
- Month
- Wu-Yin
- Day
- Ding-Si
- Hour
- Xin-Hai
AI can explain this fixed result, but it does not recalculate or rewrite the Four Pillars.
How it works
Build your Bazi context in three steps
- 01
Create a free chart
Enter birth date, time, and location, then confirm the standardized calculation basis.
- 02
Save a personal profile
Sign in to preserve the chart. Birth-detail changes keep earlier chart records available.
- 03
Choose the depth you need
Move into AI reading, luck cycles, or an annual report only when it is useful to you.
Trust and boundaries
Personal data should not be the price of vague promises
Facts stay separate from AI
Pillars and luck cycles come from the deterministic engine. AI explains them but cannot rewrite them.
Private data stays isolated
Birth details, charts, conversations, orders, and reports are protected by ownership boundaries. Server keys never enter the browser.
Payment facts stay auditable
Subscriptions and credits depend on server-confirmed payment state, never on browser return parameters.
Bazi methodology
From Four Pillars of Destiny calculation to a Bazi chart you can understand
Bazi is not a list of generic claims. Establish the pillars, Five Elements, and time boundaries first, then connect luck cycles and AI interpretation to the same chart.
What is Bazi and the Four Pillars of Destiny
A Bazi chart uses the year, month, day, and hour pillars. Each pillar combines a Heavenly Stem and Earthly Branch, creating eight characters interpreted with solar terms, the Five Elements, Ten Gods, and chart relationships.
How a Bazi chart calculator works
A Bazi calculator starts from birth date, legal clock time, and exact solar-term boundaries. Location can support historical time zones and true solar time, while unknown birth time and the 23:00 day boundary remain explicit.
From the Five Elements to Bazi luck cycles
The Five Elements are not a single good-fortune score. Wood, Fire, Earth, Metal, and Water must be read with season, the Day Master, chart relationships, and the active luck cycle.
How AI interprets a Bazi chart
AI Bazi analysis reads a confirmed chart snapshot. It does not recalculate the Four Pillars or rewrite luck cycles, keeping each answer tied to traceable chart facts and clear privacy boundaries.
Bazi Fortune AI
Begin with one free chart
You do not need to learn every term first. Explore the structure at your pace, then decide whether to save it, ask a question, or order a report.