Saju (四柱, “four pillars”) is the Korean name for the Four Pillars of Destiny, also known as BaZi in Chinese. Your birth year, month, day and hour are each written as a pillar made of one Heavenly Stem and one Earthly Branch, giving eight characters in total. Read with the classical Ziping method, they describe your temperament, aptitudes and the flow of your fortune.

How can I read my own saju?

Enter your date and time of birth on SAJUBY (sajuby.com) and we set up your Four Pillars chart with the classical Ziping method. You can then receive a report on your Day Master, Yongshin, and the flow of your 10-year luck cycles and whole life.

How is saju different from a daily horoscope?

A horoscope or fortune looks at short-term flows — today, this month, this year. Saju (Myeongri) analyzes the eight characters you were born with to describe your personality, aptitudes and the large 10-year cycles of your life. SAJUBY offers in-depth readings based on classical Myeongri.

Yongshin (用神, the “useful element”) is the one of the five elements — Wood, Fire, Earth, Metal and Water — that your chart needs most. It is chosen by weighing the strength of your Day Master, the season of your birth and the balance of the elements. Using the colors, directions and kinds of work that match it can help you make better use of your luck.

What is Daewoon (major luck cycle)?

Daewoon (大運) is the large flow of fortune that changes every 10 years. The element and Ten God each cycle brings into your natal chart set the general direction of that decade for money, work, relationships and health.

Daewoon Calculator — daewoon-su and flow

Daewoon is defined by the starting age (daewoon-su) and the ordered ten-year stem-branches that follow.

Computing daewoon-su

Yang-male/yin-female: days to the next solar term divided by three; the other group counts to the previous term.

The order of pillars

Starts at the pillar adjacent to the month pillar; advances or retreats one step every ten years.

Online calculators — caveats

Cross-check two calculators — divergence implies a calendar bug.