Civil-date reference · 1912-01-21
January 21, 1912 BaZi Chart
Sunday, January 21, 1912 maps to a reference three-pillar record of 辛亥 · 辛丑 · 丙申. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1912-01-21 is Bing · Yang Fire, and the day pillar is Yang Fire Monkey (丙申). This is a date record, not a complete personal reading.
Deterministic record
1912-01-21 at a glance
| Gregorian date | Sunday, January 21, 1912 |
|---|---|
| Lunar date | 农历辛亥年十二月初三 · lunar month 十二月, day 初三 |
| Reference pillars | 辛亥 · 辛丑 · 丙申 (year · month · day) |
| Day Master | Bing · Yang Fire · heavenly stem 丙 |
| Solar-term position | Day 1 of Major Cold (大寒), beginning 1912-01-21 |
| Next solar term | Start of Spring (立春) · 1912-02-05 · 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 Metal Pig · Xin Hai
The visible stem is Xin · Yin Metal; the branch is Hai · Pig · Water. Its Na Yin is 钗钏金, and the branch contains hidden stems 壬 · 甲. Open the full Jiazi record →
Yin Metal Ox · Xin Chou
The visible stem is Xin · Yin Metal; the branch is Chou · Ox · Earth. Its Na Yin is 壁上土, and the branch contains hidden stems 己 · 癸 · 辛. Open the full Jiazi record →
Yang Fire Monkey · Bing Shen
The visible stem is Bing · Yang Fire; the branch is Shen · Monkey · Metal. Its Na Yin is 山下火, and the branch contains hidden stems 庚 · 壬 · 戊. 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 1912
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 1912-01-21
What is the BaZi day pillar for Sunday, January 21, 1912?
In this civil-date reference, the day pillar is 丙申 (Yang Fire Monkey), cycle position 33 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Sunday, January 21, 1912?
The reference Day Master is 丙, Bing · Yang Fire. 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 1912-01-21 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 1912-01-21?
1912-01-21 is day 1 of Major Cold (大寒) in this date reference. The next solar term is Start of Spring (立春) on 1912-02-05.