Civil-date reference · 1990-01-19
January 19, 1990 BaZi Chart
Friday, January 19, 1990 maps to a reference three-pillar record of 己巳 · 丁丑 · 甲申. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1990-01-19 is Jia · Yang Wood, and the day pillar is Yang Wood Monkey (甲申). This is a date record, not a complete personal reading.
Deterministic record
1990-01-19 at a glance
| Gregorian date | Friday, January 19, 1990 |
|---|---|
| Lunar date | 农历己巳年十二月廿三 · lunar month 十二月, day 廿三 |
| Reference pillars | 己巳 · 丁丑 · 甲申 (year · month · day) |
| Day Master | Jia · Yang Wood · heavenly stem 甲 |
| Solar-term position | Day 15 of Minor Cold (小寒), beginning 1990-01-05 |
| Next solar term | Major Cold (大寒) · 1990-01-20 · 1 day away |
| Western constellation | Capricorn (摩羯) |
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 Earth Snake · Ji Si
The visible stem is Ji · Yin Earth; the branch is Si · Snake · Fire. Its Na Yin is 大林木, and the branch contains hidden stems 丙 · 庚 · 戊. Open the full Jiazi record →
Yin Fire Ox · Ding Chou
The visible stem is Ding · Yin Fire; the branch is Chou · Ox · Earth. Its Na Yin is 涧下水, and the branch contains hidden stems 己 · 癸 · 辛. Open the full Jiazi record →
Yang Wood Monkey · Jia Shen
The visible stem is Jia · Yang Wood; the branch is Shen · Monkey · Metal. Its Na Yin is 泉中水, 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 1990
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 1990-01-19
What is the BaZi day pillar for Friday, January 19, 1990?
In this civil-date reference, the day pillar is 甲申 (Yang Wood Monkey), cycle position 21 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Friday, January 19, 1990?
The reference Day Master is 甲, Jia · Yang 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 1990-01-19 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 1990-01-19?
1990-01-19 is day 15 of Minor Cold (小寒) in this date reference. The next solar term is Major Cold (大寒) on 1990-01-20.