The Yang Fire Rat Day Pillar — 丙子 Bing Zi (병자)
The day pillar 丙子, pronounced Byeong-ja in Korean, is the 13th pairing in the 60-pillar cycle and is often called the Red Rat. About one in sixty people share this exact pillar. It combines Yang Fire sitting on the Water animal called the Rat, a pairing that is read in the Korean saju tradition (사주), close to Chinese BaZi but followed with Korean conventions.
What This Pillar Is Like
In saju, each day pillar is made of two parts: a stem on top and a branch on the bottom, like a rider sitting on an animal. Here the stem is 丙, called Yang Fire, and it is pictured as the sun or a great bright fire. The branch underneath is 子, the Rat, which belongs to the Water element.
Picture a warm sun shining down over a quiet pond where a rat moves quickly and cleverly. The sun gives light and energy, while the water underneath cools and shapes that energy. This creates a pillar that is bright on the surface but carries a steady, controlled undercurrent.
Personality and Inner World
People with this day pillar often carry the qualities of Yang Fire. They tend to be bright and generous, sharing warmth and energy with people around them. They usually prefer being honest and open rather than guarded, and many feel most alive when they have an audience or a stage, whether that is a classroom, a stage, a meeting room or a group chat.
The Rat branch adds another layer. In saju this branch is known as a peach blossom branch, a term used for branches linked to being sociable, visible and magnetic to others. Combined with the bright fire stem, this can make someone easy to notice and easy to talk to. At the same time, because the branch is Water and the stem is Fire, there is a built in tension. Water tends to control fire, so this pillar is often described as disciplined and pressure tested, someone whose bright personality has learned to work within limits.
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In Love and Close Relationships
In saju, the branch directly under the day stem is called the spouse palace, the part of the chart traditionally linked to close partnerships. For this pillar, the Rat branch carries a hidden stem called 癸 and holds something called the Direct Officer star. This star is connected to ideas like principle, reputation, order and trust.
This means people with this pillar may bring a sense of structure and fairness into close relationships, valuing honesty and clear roles. A tendency to worry about appearances or to hold rigid standards can also show up here. These are only tendencies linked to this one part of the chart, not a forecast about any relationship or about what a partner will do.
Work, Money Style and Growth
The Direct Officer star is also linked more broadly to roles, status, and structure, so people with this pillar may feel comfortable in settings with clear rules, titles and expectations, such as organized teams or structured institutions. The Yang Fire stem supports this with a natural comfort in visible positions, since this stem is pictured as the sun, something built to shine rather than hide.
The twelve life stage for this stem sitting on this branch is called Conception, a stage about new possibilities just forming rather than something fully grown. This suggests a style of growth that starts small and builds steadily, rather than arriving all at once. There is no special day pillar star attached to this particular pairing, so its story is told mainly through the sun like stem, the sociable water branch, and the disciplined Fire over Water structure.
Tips for People Born on This Pillar
Since this pillar carries a bright, open stem, it can help to find regular outlets for sharing energy with others, such as group activities, presentations or creative work, rather than keeping everything inside.
Because the branch below leans toward order and watching appearances, it may also help to notice when a wish to look right is driving a decision, and to check in with what actually feels fair or honest underneath. Since the growth stage here is Conception, new plans may benefit from patient, step by step building instead of expecting quick results.
Questions people ask
What does 丙子 Byeong-ja (병자) Day Pillar mean?
It is the 13th pillar in the 60 day pillar cycle, pairing the Yang Fire stem known as the Sun with the Water branch known as the Rat. It is sometimes called the Red Rat pillar.
Is Byeong-ja a lucky pillar?
Saju does not label any pillar as simply lucky or unlucky. This pillar is better understood as a mix of tendencies, a bright sociable stem balanced by a disciplined, structure loving branch.
What is the spouse palace and does it decide compatibility?
The spouse palace is just the branch sitting under the day stem, read for general tendencies around closeness, trust and structure. It does not predict who a person will meet or how any specific relationship will turn out.
How can I find my own day pillar?
You can find it for free on this site by entering your birth date, time and place. The site converts your birth time to local solar time at your birthplace to work out your exact day pillar.
When does the Yang Fire Rat day come around?
Day pillars repeat every 60 days. The next Yang Fire Rat days are: Thu, Oct 29, 2026 · Mon, Dec 28, 2026 · Fri, Feb 26, 2027 · Tue, Apr 27, 2027 · Sat, Jun 26, 2027 · Wed, Aug 25, 2027. People born on this pillar often notice these days feel familiar.
Pillars that pair and contrast
Natural partner: 辛丑 Yin Metal Ox — its stem combines with 丙 and its branch forms a six-harmony pair with 子, a classic sign of easy cooperation.
Opposite pillar: 壬午 Yang Water Horse — stem and branch both clash with 丙子. Lively and stretching rather than bad; give each other room.
Real compatibility reads both full charts — check two birthdays.
Neighbouring pillars
Read your whole chart
Your day pillar is one of eight characters. See all four pillars, your five elements and your 2027 — the first chapters are free.