Four Pillars · BaZi
☯ Your Day Pillar & Day Master
Four Pillars of Destiny (BaZi) turns your birth date and time into four "pillars" of heavenly stems and earthly branches. The stem of your day pillar — the "Day Master" — is said to represent you.
1944-1-12 · Day Pillar
乙亥
きのと・い（YǐHài）
Day Master (represents you)
乙 Yin Wood
In BaZi, likened to grass and flowers.
The three date-determined pillars (the hour pillar needs birth time)
Year
癸未
Goat
Month
乙丑
YǐChǒu
Day ★
乙亥
Day Master 乙
Five Elements (three pillars)
Count across the 6 visible characters — excludes hidden stems and the hour pillar
About the Four Pillars & Day Master
Four Pillars of Destiny (BaZi) reads a birth moment as four stem–branch pillars: year, month, day and hour. The day pillar’s stem — the Day Master — is taken as the self. The day pillar here is computed exactly from the unbroken 60-day sexagenary cycle.
※ The year, month and day pillars are fixed by your birth date — the year/month boundaries (Beginning of Spring and the solar-term nodes) are computed precisely from solar longitude, and the day pillar from the unbroken sexagenary cycle. The hour pillar, needed for a full chart, requires your birth time and is not shown. The stem images (a great tree, the sun…) are traditional BaZi symbols — astrology, not a scientific claim. About our data