Pillar Structure

Four Pillars Calculator

Review the year, month, day, and hour structure behind a personal BaZi archive preview.

Four Pillars

Archive structure

Year

JiSi

Earth / Fire

Year pillar follows the solar-term year boundary.

Month

BingZi

Fire / Water

Month pillar follows the seasonal month boundary.

Day

BingYin

Fire / Wood

Day pillar calculated from the civil-date sexagenary day.

Hour

JiaWu

Wood / Fire

Hour pillar calculated from the supplied civil birth time.