Day pillars

Ji You 己酉

Yellow Rooster · Broad fields after the harvest

Stage · BirthSeated · OutputKorean · giyu ilju
StructureEarth Day Master × the Rooster (Metal)

Yin Earth — soft garden soil. You are seated on the energy you produce, so your force flows outward rather than pooling.

Twelve-stageBirth

Newly born energy. It learns fast and grows easily, and it tends to receive care from the people around it without having to ask.

Seated Ten GodOutput

The rice bowl is seated in your inner room. Appetite, ease of expression and an unhurried optimism are laid under this seat.

Hidden stems Geng · Expression · 10d Xin · Output · 20d

The stems concealed inside (Rooster). A branch is not one single energy — it holds this mixture, in these proportions across a 30-day month.

Fields after the harvest — this one knows the lightness that comes after emptying. A gift for tidying and finishing, and no patience for excess, so the storehouse fills sensibly rather than showily.

Is Ji You actually your day pillar?

The day pillar shifts on solar-term and zi-hour boundaries, so it is not countable by eye. Enter your birth date and the engine computes it in under a minute — free, no account.

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Frequently asked

How do I know if I have the Ji You day pillar?

Your day pillar is the stem-branch pair governing the day you were born — Ji You (己酉) in this case. It rotates every day through a cycle of sixty, and the boundaries depend on solar terms and the 11pm zi-hour rule, so it is not something you can count by eye. Enter your birth date in our free reading and the engine computes it directly.

What is the Ji You day pillar like?

Yellow Rooster — the image traditionally attached to it is "Broad fields after the harvest". Your Day Master 己 (Yin Earth — soft garden soil) sits on 酉, the Rooster, which carries Metal. In the twelve-stage cycle that position reads as Birth, and the seated Ten God is Output.

Does my day pillar tell me my whole chart?

No. The day pillar is two characters out of eight — your core axis, not the whole picture. The year, month and hour pillars, the balance of the five elements, and your decade luck all have to be laid on top before a reading means much. Treat a day-pillar page as the doorway, not the room.

Why is it called Jia Zi in Chinese and something else in Korean?

Same sixty-cycle, different reading of the same characters. 己酉 is romanised Ji You from Mandarin and giyu from Korean, and Korean saju calls the day pillar ilju (일주). The calculation is identical; the interpretive traditions differ.

Other pillars with the same Day Master ()

Other pillars seated on the Rooster ()

See all 60 day pillars ›

The twelve-stage position, seated Ten God and hidden stems are computed by the Ioreum deterministic engine (ruleset ioreum-2026.07). The reading itself is interpretation from the day-pillar tradition, not verified science — we always tell you which part is calculation and which part is tradition.