The mao hour in bazi is the Rabbit hour (卯 Mǎo), 05:00–06:59 — the gate of dawn, when the sun clears the horizon and the day’s light properly arrives. In element terms 卯 is yin Wood: the soft growth, the flowering rather than the trunk. It is a gentle, sociable, opening hour, the moment the world becomes visible again and ordinary life quietly resumes after the long dark.
The Rabbit hour (卯) and its time range
Mao is the fourth Earthly Branch and the peak of the Wood phase. Where the Tiger hour broke ground, the Rabbit hour unfolds — leaf and blossom, tact and charm. Its yin Wood is pliant and relational, more inclined to grow around obstacles than to force through them.
The Rabbit hour pillar by day stem
The stem on 卯 follows from the day stem through the Five Rats rule (五鼠遁 wǔshǔdùn):
| Day stem | Rabbit hour pillar |
|---|---|
| 甲 Jiǎ | 丁卯 |
| 乙 Yǐ | 己卯 |
| 丙 Bǐng | 辛卯 |
| 丁 Dīng | 癸卯 |
| 戊 Wù | 乙卯 |
| 己 Jǐ | 丁卯 |
| 庚 Gēng | 己卯 |
| 辛 Xīn | 辛卯 |
| 壬 Rén | 癸卯 |
| 癸 Guǐ | 乙卯 |
What sits inside 卯 — one hidden stem, one clear voice
Every branch carries hidden stems (藏干 cánggān), and 卯 is one of the four “pure” branches that hide exactly one: Yǐ 乙 (Yin Wood). There is no minor qi to hedge the reading — whatever 乙 means to your Day Master, the Rabbit hour says it plainly. That single stem is also why a Rabbit hour is prized as a root: a Jia 甲 or Yi 乙 Day Master born in this hour is anchored in its own element at the destination pillar, which counts directly toward a strong-chart verdict. The full lookup for all twelve branches is on the hidden stems table.
The ten god seated in a Rabbit hour
The hour palace is read through the ten god (十神 shíshén) that 乙 plays against your Day Master, and the same dawn hour lands very differently across the ten stems. For a Jia 甲 Day Master, 乙 is Rob Wealth 劫财 — later life among competitive peers, children with wills of their own. For a Wu 戊 Day Master it is Direct Officer 正官 — order, duty and reputation gathering at the destination. For a Geng 庚 Day Master it is Direct Wealth 正财, steady tangible results late in the road, while for a Ren 壬 Day Master it is Hurting Officer 伤官 — talent, performance and an unwillingness to retire quietly. Same hour, four different stories; the branch supplies the material, the Day Master decides what it means.
What being born in the Rabbit hour colours
The hour is the destination pillar — children, output, ambition and later life. Yin Wood at that destination reads as growth through relationship: people who advance by charm, taste and cultivated connections rather than by force, and whose later chapters tend to be graceful and well-networked. The Rabbit hour carries an artistic, diplomatic streak and a dislike of blunt conflict. It can bend a great deal, which is a strength until the chart offers nothing to bend against. What it ultimately becomes depends on the balance of the whole reading.
Clock time, solar time and the Rabbit boundary
The window given for the Rabbit hour, 05:00–06:59, is true solar time — pinned to the sun’s actual position rather than the number printed on a birth certificate. Two corrections can carry a birth across the edge of this hour. The first is longitude: a birth city rarely sits exactly on the meridian its time zone is set to, and in Singapore, where clocks run on UTC+8 while the island lies nearer 104°E, civil time can lead solar time by close to half an hour. The second is the equation of time, a seasonal wobble of up to about a quarter-hour in either direction.
Near either edge of the Rabbit hour those minutes are not cosmetic. They can move a chart into the hour before or after, and with it a different hour pillar and a different final reading. This is the quiet adjustment that separates a rough chart from an accurate one, and it is why a birth time known only to the nearest hour always deserves a second look before its hour pillar is trusted. If your recorded time sits within twenty minutes of 05:00 or 07:00, treat the neighbouring hour as a live possibility until the solar correction is done; the calculator linked below makes both corrections automatically.
Finding the Rabbit hour in your own chart
Cast your chart and look at the hour pillar — the column derived from your birth time. If the lower character is 卯, you were born in this window; the upper character should then match the row for your day stem in the table above. If it does not, the mismatch is almost always a time-zone or solar-time correction doing its work, not an error. Born to a Rabbit-hour parent or child? Check their day stem too: a 辛卯 hour (Bing or Xin day) carries Metal over Wood — the pruning shear over the blossom — while a 乙卯 hour (Wu or Gui day) doubles the Wood cleanly. If no birth time was recorded at all, do not invent one: read the three known pillars first, ask family whether the birth came “around sunrise” — dawn is one of the easier memories to anchor — and test 卯 against the neighbouring 辰 hour before committing.
Fixing your own Rabbit hour
The hour pillar is derived, not calendrical. To place 卯 among all sixty hour pillars, use the master hour stem table; the preceding Tiger hour page covers the pre-dawn watch, and the neighbouring Dragon hour page carries dawn into morning. For hour boundaries and the late-Zi (晚子時 wǎn zǐshí) convention, see the birth hour and hour pillar page. Or plot your chart free with the calculator and read your hour pillar to the minute.