Almanac & sky · NUMORA

Bazi Calculator

You want the four pillars straight: when the year flips, which two-hour branch, and whether longitude is corrected.

How to use

Late Zi (23:00) uses the next day’s day-pillar by default. True solar time vs 120°E. Ten gods vs the day stem.

Formula

FAQ

Is this Bazi calculator accurate?

The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.

Do I need an account?

No. Calculations run in your browser. Recents can stay on this device.

What inputs do I need?

Late Zi (23:00) uses the next day’s day-pillar by default. True solar time vs 120°E. Ten gods vs the day stem.

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