Civil-date reference · 1908-01-21
January 21, 1908 BaZi Chart
Tuesday, January 21, 1908 maps to a reference three-pillar record of 丁未 · 癸丑 · 乙亥. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1908-01-21 is Yi · Yin Wood, and the day pillar is Yin Wood Pig (乙亥). This is a date record, not a complete personal reading.
Deterministic record
1908-01-21 at a glance
| Gregorian date | Tuesday, January 21, 1908 |
|---|---|
| Lunar date | 农历丁未年十二月十八 · lunar month 十二月, day 十八 |
| Reference pillars | 丁未 · 癸丑 · 乙亥 (year · month · day) |
| Day Master | Yi · Yin Wood · heavenly stem 乙 |
| Solar-term position | Day 1 of Major Cold (大寒), beginning 1908-01-21 |
| Next solar term | Start of Spring (立春) · 1908-02-05 · 15 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.
Yin Fire Goat · Ding Wei
The visible stem is Ding · Yin Fire; the branch is Wei · Goat · Earth. Its Na Yin is 天河水, and the branch contains hidden stems 己 · 丁 · 乙. Open the full Jiazi record →
Yin Water Ox · Gui Chou
The visible stem is Gui · Yin Water; the branch is Chou · Ox · Earth. Its Na Yin is 桑柘木, and the branch contains hidden stems 己 · 癸 · 辛. Open the full Jiazi record →
Yin Wood Pig · Yi Hai
The visible stem is Yi · Yin Wood; the branch is Hai · Pig · Water. Its Na Yin is 山头火, and the branch contains hidden stems 壬 · 甲. 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 1908
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 1908-01-21
What is the BaZi day pillar for Tuesday, January 21, 1908?
In this civil-date reference, the day pillar is 乙亥 (Yin Wood Pig), cycle position 12 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Tuesday, January 21, 1908?
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 1908-01-21 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 1908-01-21?
1908-01-21 is day 1 of Major Cold (大寒) in this date reference. The next solar term is Start of Spring (立春) on 1908-02-05.