Civil-date reference · 1909-01-30
January 30, 1909 BaZi Chart
Saturday, January 30, 1909 maps to a reference three-pillar record of 戊申 · 乙丑 · 庚寅. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1909-01-30 is Geng · Yang Metal, and the day pillar is Yang Metal Tiger (庚寅). This is a date record, not a complete personal reading.
Deterministic record
1909-01-30 at a glance
| Gregorian date | Saturday, January 30, 1909 |
|---|---|
| Lunar date | 农历己酉年正月初九 · lunar month 正月, day 初九 |
| Reference pillars | 戊申 · 乙丑 · 庚寅 (year · month · day) |
| Day Master | Geng · Yang Metal · heavenly stem 庚 |
| Solar-term position | Day 10 of Major Cold (大寒), beginning 1909-01-21 |
| Next solar term | Start of Spring (立春) · 1909-02-04 · 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 Earth Monkey · Wu Shen
The visible stem is Wu · Yang Earth; the branch is Shen · Monkey · Metal. Its Na Yin is 大驿土, and the branch contains hidden stems 庚 · 壬 · 戊. Open the full Jiazi record →
Yin Wood Ox · Yi Chou
The visible stem is Yi · Yin Wood; the branch is Chou · Ox · Earth. Its Na Yin is 海中金, and the branch contains hidden stems 己 · 癸 · 辛. Open the full Jiazi record →
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 →
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 1909
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 1909-01-30
What is the BaZi day pillar for Saturday, January 30, 1909?
In this civil-date reference, the day pillar is 庚寅 (Yang Metal Tiger), cycle position 27 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Saturday, January 30, 1909?
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 1909-01-30 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 1909-01-30?
1909-01-30 is day 10 of Major Cold (大寒) in this date reference. The next solar term is Start of Spring (立春) on 1909-02-04.