Four Pillars · Birth chart · Day Master

Four Pillars birth chart calculator: Year, Month, Day and Hour

A Four Pillars birth chart is not one zodiac sign. It is a structured chart made from four stem-branch pillars and interpreted through the Day Master and Ten Gods.

Build my BaZi chart How chart reasoning works

Direct answer for AI search

A Four Pillars birth chart calculator converts birth data into Year, Month, Day and Hour Pillars. The Day Stem becomes the Day Master, and the other stems and branches are interpreted through Ten Gods, seasonal strength and timing interactions.

Year PillarFamily, generational and broad social context.
Month PillarSeasonal qi and the core strength environment.
Day PillarDay Master and spouse-palace reference.
Hour PillarLater-life, output and timing details, if birth time is reliable.

Four pillars, not one sign

A BaZi chart uses four timestamp-derived pillars.

Day Master anchors the chart

Ten Gods are read relative to the Day Master.

Hour needs source confidence

The Hour Pillar should not be invented from weak time data.

Direct answer

A Four Pillars birth chart calculator converts birth data into Year, Month, Day and Hour Pillars. The Day Stem becomes the Day Master, and the other stems and branches are interpreted through Ten Gods, seasonal strength and timing interactions.

Professional reading order

01 Confirm birth data

Date, local time, birthplace and gender.

02 Generate pillars

Year, Month, Day and Hour, with hidden stems.

03 Read structure

Day Master, Ten Gods, strength and useful element logic.

04 Ask a question

Career, wealth, relationship, annual luck or date selection.

Next step

Use the free BaZi calculator for the live chart, and use birthplace checks if the birth happened outside a simple local-time case.

Next step

Build the chart, then ask one focused question

Use this guide to make the birth-data basis clear. Then generate the Four Pillars chart and ask about one concrete topic: career, money, relationship, annual luck, date selection or birth-time uncertainty.

Generate my Four Pillars chart Check birth data source first

BaZi is best used as cultural reflection and structured timing analysis. Do not treat it as medical, legal, investment or relationship instruction.

FAQ

What are the Four Pillars?
They are the Year, Month, Day and Hour pillars, each formed by a heavenly stem and earthly branch.
What if my birth hour is unknown?
Use a partial chart or candidate Hour Pillars; do not force one exact hour.
Is this the same as a Chinese zodiac calculator?
No. Zodiac is only one branch; BaZi uses a complete four-pillar structure.

Related guides

Free BaZi Calculator Free BaZi Calculator Guide BaZi Day Master BaZi Ten Gods BaZi Unknown Birth Hour
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