How to Read a Manseryeok — The Order for Finding Your Eight Saju Characters

A manseryeok (Ten-Thousand-Year, or perpetual, calendar) is a calendar that translates dates into the sexagenary stem-branch cycle. Reading it is simple. First, enter your birth date and time to get the four pillars — Year, Month, Day, and Hour. Next, read the top character of each pillar (its Heavenly Stem) and the bottom character (its Earthly Branch). Finally, find the top character of the Day Pillar — your Day Master. Those eight characters are your Saju (the Four Pillars of Destiny), and the Day Master is the anchor point for the whole reading. One caveat: how the boundaries are handled — solar terms, the late-ja hour, true solar time — can change the characters themselves, so it's worth checking the calculation basis alongside the result.

What does a manseryeok actually show?

A manseryeok is a calendar that converts both solar and lunar dates into the sexagenary stem-branch cycle. To build a Saju chart you have to turn your birth date and time into stem-branch form, and the manseryeok is the reference that governs that conversion. Pairing the 10 Heavenly Stems with the 12 Earthly Branches in order produces 60 stem-branch combinations, and that repeating cycle is the Sixty Jiazi. When you enter your birth date and time into a manseryeok app or calculator, it returns four pillars — Year, Month, Day, and Hour — and each pillar is made of two characters: one Heavenly Stem and one Earthly Branch. Four pillars, two characters each, eight characters in all — that's why Saju is also called "the eight characters."

In what order do you read the eight characters?

1. Identify the four pillars: Find the four pillars for the year (Year Pillar), month (Month Pillar), day (Day Pillar), and time (Hour Pillar) of your birth. Some layouts write them right to left and some apps write them left to right, but the content is the same.
2. Separate stem from branch: The top character of each pillar is the Heavenly Stem (Gap, Eul, Byeong, Jeong, Mu, Gi, Gyeong, Sin, Im, Gye), and the bottom character is the Earthly Branch (Ja, Chuk, In, Myo, Jin, Sa, O, Mi, Sin, Yu, Sul, Hae). The Heavenly Stems are often read as the realm of the outward mind and expression, and the Earthly Branches as the ground of reality and one's inner world.
3. Find the Day Master: The top character of the Day Pillar (the pillar for the day you were born) is your Day Master. Because it's the character that stands for "you" in the chart, the other seven characters are all read in terms of their relationship to it.

Once you've found all eight characters, the next step is interpretation. The reading order that runs from your Day Master into the Five Elements distribution and the Ten Gods is laid out in How to read a Saju chart.

Same birthday — so why does each manseryeok give a different result?

It comes down to how the boundaries are handled. Three things can shift the result.

• Solar terms: In Saju, the year and month don't turn over on January 1st or the first day of the lunar month — they turn on the solar terms (節氣). The year begins at Ipchun (Start of Spring), so someone born in early February may find their solar-calendar year and their Saju year don't match. The month, too, splits into a different Month Pillar depending on whether you were born before or after the exact moment a solar term begins.
• The late-ja hour (ya-jasi): Schools disagree on whether the stretch from 11 p.m. to midnight belongs to that day or rolls over to the next. Depending on how this is handled, the Day Pillar itself can change.
• True solar time: Korea's standard time is based on the 135°E meridian, so it runs about 30 minutes off from the actual solar time over the Korean peninsula. The Hour Pillar changes in two-hour blocks, so for a birth near a boundary, this one correction alone can shift the Hour Pillar.

That's why, with a manseryeok, the accurate tool isn't the one that claims "this table is the right one" — it's the one that tells you which basis it calculated on. Generic apps often blur these boundaries; Gwiraedang's free manseryeok calculator computes the solar terms astronomically on the Korea Astronomy and Space Science Institute (KASI) basis, pins them to the minute, and shows the true-solar-time and late-ja-hour corrections right on the screen. The same birth date and time always returns the same chart, no matter when you run it.

What a manseryeok tells you is only the arrangement of energies at the moment you were born — not a fixed fate. The eight characters are plenty when used as a reference for understanding yourself.

FAQ

If I don't know my birth time, can I still read a manseryeok? Yes. Only the two Hour Pillar characters are left blank; the other six — Year, Month, and Day Pillars — still come through. Your Day Master, the character that stands for "you," lives in the Day Pillar, so you can confirm it even without knowing your birth time.

Should I use my lunar birthday for a manseryeok? No. Saju is calculated on the solar terms — neither the lunar nor the solar calendar as such. Whether you know your birthday as a solar date or a lunar one, just enter it as you remember it, and the manseryeok will convert it to the same moment in time.

If different manseryeok apps give me different eight characters, which is right? The difference comes from how each one handles the solar-term times, the late-ja hour, and true solar time. If you were born right on a boundary, the safe move is to check with a tool that discloses which corrections it applied.