Bing Zi 丙子
Red Rat · The sun mirrored on a winter lake
Yang Fire — the blazing sun. You are seated on the water energy that controls you — you live with tension and responsibility beneath you.
Newly conceived. Curiosity and possibility are large here — the flutter felt at the start of things.
An upright office is seated in your inner room. Principle and standing matter to you, and trust tends to follow.
The stems concealed inside 子 (Rat). A branch is not one single energy — it holds this mixture, in these proportions across a 30-day month.
The sun mirrored on a winter lake — brightness and stillness living in the same person. Luminous outside and quiet within, this pillar tends to recharge its light in time spent alone.
Save the Red Rat card to PinterestFrequently asked
How do I know if I have the Bing Zi day pillar?
Your day pillar is the stem-branch pair governing the day you were born — Bing Zi (丙子) 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 Bing Zi day pillar like?
Red Rat — the image traditionally attached to it is "The sun mirrored on a winter lake". Your Day Master 丙 (Yang Fire — the blazing sun) sits on 子, the Rat, which carries Water. In the twelve-stage cycle that position reads as Conception, and the seated Ten God is Officer.
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. 丙子 is romanised Bing Zi from Mandarin and byeongja 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 (丙)
Other pillars seated on the Rat (子)
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.