Day pillars

Ding Chou 丁丑

Red Ox · A hearth-fire warming the snowfield

Stage · ReposeSeated · OutputKorean · jeongchuk ilju
StructureFire Day Master × the Ox (Earth)

Yin Fire — warm candlelight. You are seated on the energy you produce, so your force flows outward rather than pooling.

Twelve-stageRepose

Storing away in the vault. Good at gathering, keeping and saving — and inclined not to show what is inside.

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 Gui · Authority · 9d Xin · Indirect Wealth · 3d Ji · Output · 18d

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

A hearth in a snowfield: it warms what is beside it for a long time without making a scene. When the devotion runs too long the ember itself thins, so keeping your own firewood is the work.

Is Ding Chou 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 Ding Chou day pillar?

Your day pillar is the stem-branch pair governing the day you were born — Ding Chou (丁丑) 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 Ding Chou day pillar like?

Red Ox — the image traditionally attached to it is "A hearth-fire warming the snowfield". Your Day Master 丁 (Yin Fire — warm candlelight) sits on 丑, the Ox, which carries Earth. In the twelve-stage cycle that position reads as Repose, 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. 丁丑 is romanised Ding Chou from Mandarin and jeongchuk 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 Ox ()

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.