Civil-date reference · 1920-01-13
January 13, 1920 BaZi Chart
Tuesday, January 13, 1920 maps to a reference three-pillar record of 己未 · 丁丑 · 庚午. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1920-01-13 is Geng · Yang Metal, and the day pillar is Yang Metal Horse (庚午). This is a date record, not a complete personal reading.
Deterministic record
1920-01-13 at a glance
| Gregorian date | Tuesday, January 13, 1920 |
|---|---|
| Lunar date | 农历己未年十一月廿三 · lunar month 十一月, day 廿三 |
| Reference pillars | 己未 · 丁丑 · 庚午 (year · month · day) |
| Day Master | Geng · Yang Metal · heavenly stem 庚 |
| Solar-term position | Day 8 of Minor Cold (小寒), beginning 1920-01-06 |
| Next solar term | Major Cold (大寒) · 1920-01-21 · 8 days 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 Goat · Ji Wei
The visible stem is Ji · Yin Earth; the branch is Wei · Goat · Earth. Its Na Yin is 天上火, and the branch contains hidden stems 己 · 丁 · 乙. 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 Metal Horse · Geng Wu
The visible stem is Geng · Yang Metal; the branch is Wu · Horse · Fire. Its Na Yin is 路旁土, and the branch contains hidden stems 丁 · 己. 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 1920
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 1920-01-13
What is the BaZi day pillar for Tuesday, January 13, 1920?
In this civil-date reference, the day pillar is 庚午 (Yang Metal Horse), cycle position 7 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Tuesday, January 13, 1920?
The reference Day Master is 庚, Geng · Yang Metal. 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 1920-01-13 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 1920-01-13?
1920-01-13 is day 8 of Minor Cold (小寒) in this date reference. The next solar term is Major Cold (大寒) on 1920-01-21.