Yin Wood Rabbit (Yi Mao, 乙卯) day pillar
A Yin Wood day master, the Vine, sitting on the Rabbit.
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 Yi Mao day.
Its sound element: Water of the Great Stream (Da Xi Shui, 大溪水)
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:
Dew; likes Water and Fire.
露也，喜水及火
What the Rabbit holds, and what it is to Yin Wood
Each branch holds one to three stems. The ones under your own day master are the closest things to you in the chart.
- Yin Wood (Yi, 乙), the main one — Friend (Bi Jian, 比肩). Same element, same polarity as you. A peer: someone standing where you stand, competing for the same thing and equally able to share the load.
In San Ming Tong Hui’s section on where each stem is born and dies, the Rabbit is the seat of Yin Wood’s salary (Lu, 禄), where it is strongest.
A Yi Mao 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 Yi Mao day; what it says about the other five Yin Wood days is on the Yin Wood day master page. Hours are true solar time, not clock time.
Rat hour 23:00–01:00 · Yang Fire Rat (Bing Zi, 丙子)
high. Dragon (辰), Dog (戌), Ox (丑), Goat (未) and Pig (亥) in year or month, with no officer star in sight, noble.
高。辰戌丑未亥年月，不见官星，贵。
Ox hour 01:00–03:00 · Yin Fire Ox (Ding Chou, 丁丑)
a Pig (亥) month, the self strong and seeing Yin Metal (辛) as Seven Killings (偏官), with Yin Fire (丁) in the pillars to check it — the censorate and a military office.
亥月，身旺见辛偏官，柱有丁制，风宪武职。
Tiger hour 03:00–05:00 · Yang Earth Tiger (Wu Yin, 戊寅)
blessing comes out of the punishment. Born in autumn, noble. A Rooster (酉) year meeting Dragon (辰), Dog (戌), Ox (丑) or Goat (未) months, wealthy. A Rabbit (卯) month is the Established Prosperity (建禄), a Horse (午) month the Resource (印) producing; with officer and Resource showing, all favourable.
刑中发福。秋生贵。酉年遇辰戌丑未月，富。卯月建禄，午月印生，透官印，俱吉。
Rabbit hour 05:00–07:00 · Yin Earth Rabbit (Ji Mao, 己卯)
high; born in spring at its strength, a monk or a priest, well provided. Summer ordinary; with no Yin Metal (辛) in sight, favourable. Autumn, carrying illness. Winter, warm and thick. Rabbit (卯) and Ox (丑) in year or month, conspicuous and long-lived.
高，春生旺，为僧道，富足。夏平常，不见辛金，吉。秋带疾。冬温厚。卯丑年月，显达高寿。
Dragon hour 07:00–09:00 · Yang Metal Dragon (Geng Chen, 庚辰)
wealth and rank. Where year and month carry Fire and Earth, greatly noble.
富贵。通火土年月，大贵。
Snake hour 09:00–11:00 · Yin Metal Snake (Xin Si, 辛巳)
born in spring, the self strong and the Killings (煞) shallow, greatly noble. Summer ordinary. Autumn, officer and Killings strong; winter, the Direct Resource (印绶) strong — both favourable. Autumn is not as good as winter.
春生，身强煞浅，大贵。夏平常。秋，官煞旺；冬，印绶旺，俱吉。秋不如冬。
Horse hour 11:00–13:00 · Yang Water Horse (Ren Wu, 壬午)
high. An Ox (丑) month enters mixed-qi wealth and officer; Monkey (申) and Rooster (酉) months, self and Killings (煞) in balance — both govern conspicuous nobility. Pure Horse (午) and Rooster in year and month, third or fourth grade; Dragon (辰) and Dog (戌), ordinary.
高，丑月，入杂气财官；申酉月，身煞两停，俱主显贵。纯午酉年月，三四品；辰戌，平常。
Goat hour 13:00–15:00 · Yin Water Goat (Gui Wei, 癸未)
changes its ancestors and leaves its kin, taking the wife's house for a home. Horse (午) and Goat (未) in year or month, noble. Spring, more noble still.
改祖离亲，就妻为家。午未年月，贵。春尤贵。
Monkey hour 15:00–17:00 · Yang Wood Monkey (Jia Shen, 甲申)
transforming, noble. Where the month carries Water qi with nothing injuring or breaking it, noble; otherwise, wealthy.
化贵。月通水气无伤破者，贵，不然，富。
Rooster hour 17:00–19:00 · Yin Wood Rooster (Yi You, 乙酉)
where the month carries a Metal frame, noble. Goat (未) and Tiger (寅) in year or month, office to the first or second grade.
月通金局者贵。未寅年月，官至一二品。
Dog hour 19:00–21:00 · Yang Fire Dog (Bing Xu, 丙戌)
Tiger (寅) and Rabbit (卯) months running a western period, sixth or seventh grade. A Rat (子) month, Direct Resource (印绶); an Ox (丑) month, mixed qi, punishing out wealth and officer — both noble.
寅卯月，运西运，六七品贵。子月印绶；丑月杂气，刑出财官，俱贵。
Pig hour 21:00–23:00 · Yin Fire Pig (Ding Hai, 丁亥)
Snake (巳), Rooster (酉) and Ox (丑) months, Seven Killings (偏官); a Monkey (申) month, Direct Officer (正官) — both noble. A Pig (亥) month running a southeastern period, the censorate. A Goat (未) month, the triad binding a Wood frame, greatly noble.
巳酉丑月偏官，申月正官，俱贵。亥月，东南运，风宪。未月，三合木局，大贵。
Named days in Yuan Hai Zi Ping (渊海子平)
These are decided by the day pillar alone, so everyone born on a Yi Mao day is in them. The work attaches conditions to most of them; the passage is given whole.
The eight of one substance
The day pillar is Wood Tiger (甲寅), Wood Rabbit (乙卯), Metal Monkey (庚申) or Metal Rooster (辛酉). The section lists more days whose stem and branch share an element, then names these four as the proper ones — The proper ones (为正) — so only those four are judged.
六十甲子，独此干支同类，内甲寅、乙卯、庚申、辛酉四日自专禄旺为正。
The Rabbit 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
- Rooster
- Pairs with (six harmony)
- Dog
- In a trine with
- Goat, Pig
- Punishment with
- Rat
- Harms
- Dragon
- Breaks
- Horse
The next Yi Mao days: 7 December 2026, 5 February 2027, 6 April 2027. It returns every sixty days.
Famous people born on a Yi Mao day
- Faye Wong Singer
- Jin Yong Novelist · The Legend of the Condor Heroes
- Qian Xuesen Aerospace scientist · founder of China's rocket programme
The Yin Wood day master · Before it: Jia Yin · After it: Bing Chen · All sixty day pillars