Day pillars

Geng Xu 庚戌

White Dog · An old sword asleep in the mountains

Stage · WaningSeated · Indirect ResourceKorean · gyeongsul ilju
StructureMetal Day Master × the Dog (Earth)

Yang Metal — a forged sword. You are seated on the earth energy that feeds you — there is something to lean on underfoot.

Twelve-stageWaning

Just past the summit. Seasoned and steady, better at holding what exists than at forcing expansion.

Seated Ten GodIndirect Resource

An unorthodox teacher sits in the inner room. Intuition and an original mind sit here — along with a head too busy for deep sleep.

Hidden stems Xin · Rival · 9d Ding · Officer · 3d Wu · Indirect Resource · 18d

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

An old sword asleep in the mountains — usually sheathed, and knowing when to draw. Weight and loyalty are the strengths; a blade left undrawn too long, meaning endurance stretched too far, does rust.

Is Geng Xu 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 Geng Xu day pillar?

Your day pillar is the stem-branch pair governing the day you were born — Geng Xu (庚戌) 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 Geng Xu day pillar like?

White Dog — the image traditionally attached to it is "An old sword asleep in the mountains". Your Day Master 庚 (Yang Metal — a forged sword) sits on 戌, the Dog, which carries Earth. In the twelve-stage cycle that position reads as Waning, and the seated Ten God is Indirect 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. 庚戌 is romanised Geng Xu from Mandarin and gyeongsul 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 Dog ()

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.