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Free BaZi chart

Cast your four pillars from the solar terms with true solar time. Everything runs in your browser and nothing is stored. Bring the chart to a reading, or just explore.

Gender
Calendar
Birth date

To the minute if you know it. The hour pillar changes every two hours, so the exact time matters near a boundary.

Used to convert clock time to true solar time at the birth longitude.

Advanced options

Auto-filled from the birthplace. Peninsular Malaysia and Singapore used UTC+7:30 before 1 Jan 1982; that is handled for you.

Rules

How to read this chart子平小引

The Day Master is you

The stem of the day pillar is the self. Every other character is read by its relationship to it: does it feed you, drain you, control you, or stand beside you.

Ten Gods

Each relationship has a name. Officer and Seven Killings control you, Wealth is what you control, Resource feeds you, Output is what you produce, Companions share your element.

Branches hide stems

A branch holds one to three hidden stems. The first is the main qi; the others are undercurrents. A hidden stem that also appears on a stem above is said to be revealed and carries more weight.

Luck pillars turn the page

From the month pillar, counting forward or backward by gender and year polarity, each ten-year luck pillar changes how the same chart reads. Each year adds an annual pillar on top.

Calculations use solar terms (节气) for the year and month pillars, the 23:00 day change rule you selected, and true solar time from the birth longitude and the equation of time. Ages follow East Asian counting (虚岁). For cultural study and self-reflection. This is not advice on health, finance or legal matters.

Questions

Is the chart accurate?

It uses the solar terms for the year and month pillars, true solar time from your birthplace's longitude, and the 23:00 day-change rule you select. The pillars are the same a consultant would cast. Strength and favourable elements are a weighted estimate; a reading refines them.

Does the tool store my birth details?

No. It runs entirely in your browser. Nothing is sent to a server.

What's the difference between the chart and a reading?

The chart is the raw data. A reading is what it means for you: your question, your cycle, your next step. BaZi readings with Howard are RM99–299.

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