Civil-date reference · 2011-01-30
January 30, 2011 BaZi Chart
Sunday, January 30, 2011 maps to a reference three-pillar record of 庚寅 · 己丑 · 乙酉. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 2011-01-30 is Yi · Yin Wood, and the day pillar is Yin Wood Rooster (乙酉). This is a date record, not a complete personal reading.
Deterministic record
2011-01-30 at a glance
| Gregorian date | Sunday, January 30, 2011 |
|---|---|
| Lunar date | 农历庚寅年十二月廿七 · lunar month 十二月, day 廿七 |
| Reference pillars | 庚寅 · 己丑 · 乙酉 (year · month · day) |
| Day Master | Yi · Yin Wood · heavenly stem 乙 |
| Solar-term position | Day 11 of Major Cold (大寒), beginning 2011-01-20 |
| Next solar term | Start of Spring (立春) · 2011-02-04 · 5 days away |
| Western constellation | Aquarius (水瓶) |
Three coordinates, three jobs
What the reference pillars contain
Each stem-branch pair is a deterministic calendar coordinate. Its role changes by pillar position, so the three rows stay separate rather than collapsing into one personality label.
Yang Metal Tiger · Geng Yin
The visible stem is Geng · Yang Metal; the branch is Yin · Tiger · Wood. Its Na Yin is 松柏木, and the branch contains hidden stems 甲 · 丙 · 戊. Open the full Jiazi record →
Yin Earth Ox · Ji Chou
The visible stem is Ji · Yin Earth; the branch is Chou · Ox · Earth. Its Na Yin is 霹雳火, and the branch contains hidden stems 己 · 癸 · 辛. Open the full Jiazi record →
Yin Wood Rooster · Yi You
The visible stem is Yi · Yin Wood; the branch is You · Rooster · Metal. Its Na Yin is 泉中水, and the branch contains hidden stem 辛. Open the full Jiazi record →
Calculation boundary
What this date does not settle
The atlas uses a standard civil-date reference so dates can be compared consistently. A real birth happened at a place and an instant, not inside a URL slug.
- Hour pillar: requires birth time after historical timezone and true-solar-time correction.
- Day boundary: a late-night clock time can cross the adopted Zi-hour or solar-day boundary after correction.
- Solar-term boundary: an actual birth instant near a term transition can change the resolved year or month pillar.
- Interpretation: one date or one Jiazi pair does not determine career, relationships, wealth, health, or events.
Every date in January 2011
Resolve the fourth pillar
Calculate the actual birth chart
Add birth time and birthplace. Pillarwise then resolves historical timezone, longitude correction, equation of time, day-boundary risk, and the hour pillar before it generates a chart.
Questions about 2011-01-30
What is the BaZi day pillar for Sunday, January 30, 2011?
In this civil-date reference, the day pillar is 乙酉 (Yin Wood Rooster), cycle position 22 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Sunday, January 30, 2011?
The reference Day Master is 乙, Yi · Yin Wood. The Day Master is the heavenly stem of the resolved day pillar; it is not a complete personality result.
Can I calculate a complete BaZi chart from 2011-01-30 alone?
No. A complete Four Pillars chart requires birth time and birthplace. Historical timezone, longitude correction, equation of time, and hour or day boundaries can materially change the resolved chart.
Which solar term contains 2011-01-30?
2011-01-30 is day 11 of Major Cold (大寒) in this date reference. The next solar term is Start of Spring (立春) on 2011-02-04.