# BaZi chart

Enter a birth date, time and place; a rule engine derives the Four Pillars. Historical DST and true solar time are handled for you, and every conversion step can be expanded.

## What you provide

- **Date of birth / Time of birth** —— Enter the clock time as written on the birth certificate. Do not convert for time zone or DST yourself — the engine does that.
- **Time zone of birthplace** · **Latitude** / **Longitude** —— Pick a city above to fill these in, or type them by hand. North and east are positive; south and west are negative.
- **Gender** —— Male / Female
- **Use true solar time** —— Off by default. When on, the time is corrected by longitude and the equation of time.
- **Late-Zi hour rule** —— Only matters for births between 23:00 and 24:00. Both schools exist; this site defaults to same day.

## What you get

The four pillars (stem and branch for year, month, day and hour), five-element weights, the major luck cycles with their start age, minor luck, and a step-by-step conversion chain you can check yourself. All of it comes from a rule engine — no fact on this page is generated by AI.

[Calculate](https://www.sinowisdomhub.com/en/bazi)

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Source page: https://www.sinowisdomhub.com/en/bazi