Day pillars

Wu Wu 戊午

Yellow Horse · A red mountain under the noon sun

Stage · PeakSeated · ResourceKorean · muo ilju
StructureEarth Day Master × the Horse (Fire)

Yang Earth — a steady mountain. You are seated on the fire energy that feeds you — there is something to lean on underfoot.

Twelve-stagePeak

The summit of the cycle. The most command and the strongest will — which also means the direction it points matters more than usual.

Seated Ten GodResource

A mother-like teacher is seated in your inner room. Learning and support are laid under this seat — receiving is familiar, so standing alone becomes the homework.

Hidden stems Bing · Indirect Resource · 10d Ji · Rival · 9d Ding · Resource · 11d

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

A red mountain under the noon sun, storing heat inward. Outwardly composed as a mountain with lava underneath, so a channel to let the pressure off before it erupts is genuinely necessary.

Is Wu Wu 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 Wu Wu day pillar?

Your day pillar is the stem-branch pair governing the day you were born — Wu Wu (戊午) 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 Wu Wu day pillar like?

Yellow Horse — the image traditionally attached to it is "A red mountain under the noon sun". Your Day Master 戊 (Yang Earth — a steady mountain) sits on 午, the Horse, which carries Fire. In the twelve-stage cycle that position reads as Peak, and the seated Ten God is Resource.

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. 戊午 is romanised Wu Wu from Mandarin and muo 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 Horse ()

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.