Yin Water Goat (Gui Wei, 癸未) day pillar
A Yin Water day master, the Mist, sitting on the Goat.
Your day pillar is the pair of characters for the day you were born. The top one, the stem, is your day master — you. The bottom one, the branch, is what it sits on. The sixty pillars come round in turn, one a day, so about one person in sixty was born on a Gui Wei day.
Its sound element: Willow Wood (Yang Liu Mu, 杨柳木)
The sixty pillars go in pairs, and each pair carries a sound element (Na Yin, 纳音) — an image, separate from the element of the stem. The classic San Ming Tong Hui (三命通会) describes each pillar by it:
Willow roots; likes winter and Water, and suits spring as well.
杨柳根，喜冬及水，亦宜春
What the Goat holds, and what it is to Yin Water
Each branch holds one to three stems. The ones under your own day master are the closest things to you in the chart.
- Yin Earth (Ji, 己), the main one — Seven Killings (Qi Sha, 七杀). What controls you, same polarity. Pressure with nothing softening it: demand, risk, and whatever you answer to whether you chose it or not.
- Yin Fire (Ding, 丁) — Indirect Wealth (Pian Cai, 偏财). What you control, same polarity. Wealth that comes sideways rather than by salary — the uneven kind.
- Yin Wood (Yi, 乙) — Eating God (Shi Shen, 食神). What you produce, same polarity. Output that comes easily: making, feeding, expressing, without strain.
A Gui Wei day at each birth hour: San Ming Tong Hui (三命通会)
Two volumes of this classic go hour by hour, and at each hour say something about this exact day pillar. These are its sentences on a Gui Wei day; what it says about the other five Yin Water days is on the Yin Water day master page. Hours are true solar time, not clock time.
Rat hour 23:00–01:00 · Yang Water Rat (Ren Zi, 壬子)
Monkey (申) and Rooster (酉) months, noble. Dog (戌) and Pig (亥), great wealth and rank. Tiger (寅) and Rabbit (卯), solitary. Dragon (辰) and Snake (巳), ill. It dislikes a Water Monkey (壬申) month, the body not whole, ill; a Metal Dragon (庚辰) month, cruel punishment; a Wood Ox (乙丑) month, losing the land and a bad death.
申酉月，贵。戌亥，大富贵。寅卯，孤。辰巳，凶。忌壬申月，身不全，凶；庚辰月，凶刑；乙丑月，失土凶死。
Ox hour 01:00–03:00 · Yin Water Ox (Gui Chou, 癸丑)
Rat (子), Ox (丑) and Tiger (寅) in year or month, noble, wealthy in middle age. A Rabbit (卯) month running Metal and Water periods, the highest grade. Dragon (辰) and Dog (戌), the four vaults complete, greatly noble.
子丑寅年月，贵，中年富。卯月，行金水运，极品。辰戌，四库全，大贵。
Tiger hour 03:00–05:00 · Yang Wood Tiger (Jia Yin, 甲寅)
it governs the fine and solid, conspicuously noble in middle age. If born in an Earth Goat (己未) or Earth Snake (己巳) year or month, military nobility.
主秀实，中年贵显。若生己未己巳年月，武贵。
Rabbit hour 05:00–07:00 · Yin Wood Rabbit (Yi Mao, 乙卯)
Tiger (寅), Pig (亥), Rabbit (卯) and Goat (未) months, Hurting Officer (伤官) injured to the full, firm in judgement, ordinary. Dragon (辰), Dog (戌), Monkey (申) and Rat (子) months, noble.
寅亥卯未月，伤官伤尽，刚断平常。辰戌申子月，贵。
Dragon hour 07:00–09:00 · Yang Fire Dragon (Bing Chen, 丙辰)
high. Tiger (寅), Rabbit (卯) and Goat (未) months, ordinary. Dragon (辰), Dog (戌) and Ox (丑) months, favourable; a Snake (巳) month, wealth and officer both strong, noble.
高。寅卯未月，平常。辰戌丑月，吉，巳月，财官俱旺，贵。
Snake hour 09:00–11:00 · Yin Fire Snake (Ding Si, 丁巳)
Tiger (寅), Horse (午) and Dog (戌) months, the self and the wealth strong and conspicuous; autumn and winter, the prosperity star (禄) strong, injured and crippled.
寅午戌月，身财旺显，秋冬禄旺，伤残疾。
Horse hour 11:00–13:00 · Yang Earth Horse (Wu Wu, 戊午)
Tiger (寅), Horse (午) and Dog (戌), transforming to Fire and binding the frame, conspicuously noble.
寅午戌，化火合局，贵显。
Goat hour 13:00–15:00 · Yin Earth Goat (Ji Wei, 己未)
high. In spring the Seven Killings (偏官) has control, favourable. Summer, ordinary. Autumn and winter the self is strong; a Monkey (申) month running a Wood period, conspicuously noble. Snake (巳) and Dragon (辰) years, one of the six ministers.
高。春偏官有制，吉。夏，平常。秋、冬身旺，申月行木运，显贵。巳辰年，六卿。
Monkey hour 15:00–17:00 · Yang Metal Monkey (Geng Shen, 庚申)
where the pillars have Wood Tiger (甲寅) and Wood Rabbit (乙卯), the Yin Earth (己) binds with the Yang Wood (甲) and the Yin Wood (乙) binds with the Yang Metal (庚) — a worthy wife and filial children, glory coming later. Rooster (酉) and Monkey (申) in year or month, third or fourth grade. Born in autumn, running a Wood and Fire period, second or third grade. Pig (亥) and Rabbit (卯), advancing by letters, noble.
柱有甲寅，乙卯，己与甲合，乙与庚合，妻贤子孝，荣华在后。酉申年月，三四品。秋生，行木火运，二三品。亥卯，文进贵。
Rooster hour 17:00–19:00 · Yin Metal Rooster (Xin You, 辛酉)
spring, poor; summer, hard first and easy after; autumn, favourable; winter, noble.
春贫，夏先难后易，秋吉，冬贵。
Dog hour 19:00–21:00 · Yang Water Dog (Ren Xu, 壬戌)
punishment. Born in a Snake (巳) month, third or fourth grade. Rat (子) and Yang Metal (庚) in year or month, noble in close attendance.
刑。巳月生，三四品。子庚年月，近侍贵。
Pig hour 21:00–23:00 · Yin Water Pig (Gui Hai, 癸亥)
the self sits upon wealth and officer. Dragon (辰), Dog (戌), Ox (丑) and Goat (未) months running a north-eastern period, noble. An autumn month with an eastern period, seventh or eighth grade; with the Direct Resource (正印) and the Direct Officer (正官) showing at the stems, gold and purple.
身下坐财官。辰戌丑未月，行东北运，贵。秋月，东运，七八品贵；干透正印、正官，金紫。
The Goat and the other animals
When the day branch meets these — in a year, a ten-year luck period, or someone else’s chart — the classics read it by these relationships.
- Clashes with
- Ox
- Pairs with (six harmony)
- Horse
- In a trine with
- Rabbit, Pig
- Punishment with
- Ox, Dog
- Harms
- Rat
- Breaks
- Dog
The next Gui Wei days: 5 November 2026, 4 January 2027, 5 March 2027. It returns every sixty days.
Famous people born on a Gui Wei day
- S. R. Nathan President of Singapore, 1999–2011
- Lawrence Wong Prime Minister of Singapore, since 2024
The Yin Water day master · Before it: Ren Wu · After it: Jia Shen · All sixty day pillars