Civil-date reference · 1938-09-30
September 30, 1938 BaZi Chart
Friday, September 30, 1938 maps to a reference three-pillar record of 戊寅 · 辛酉 · 乙丑. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1938-09-30 is Yi · Yin Wood, and the day pillar is Yin Wood Ox (乙丑). This is a date record, not a complete personal reading.
Deterministic record
1938-09-30 at a glance
| Gregorian date | Friday, September 30, 1938 |
|---|---|
| Lunar date | 农历戊寅年八月初七 · lunar month 八月, day 初七 |
| Reference pillars | 戊寅 · 辛酉 · 乙丑 (year · month · day) |
| Day Master | Yi · Yin Wood · heavenly stem 乙 |
| Solar-term position | Day 7 of Autumn Equinox (秋分), beginning 1938-09-24 |
| Next solar term | Cold Dew (寒露) · 1938-10-09 · 9 days away |
| Western constellation | Libra (天秤) |
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 Tiger · Wu Yin
The visible stem is Wu · Yang Earth; the branch is Yin · Tiger · Wood. Its Na Yin is 城头土, and the branch contains hidden stems 甲 · 丙 · 戊. Open the full Jiazi record →
Yin Metal Rooster · Xin You
The visible stem is Xin · Yin Metal; the branch is You · Rooster · Metal. Its Na Yin is 石榴木, and the branch contains hidden stem 辛. 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 →
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 September 1938
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 1938-09-30
What is the BaZi day pillar for Friday, September 30, 1938?
In this civil-date reference, the day pillar is 乙丑 (Yin Wood Ox), cycle position 2 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Friday, September 30, 1938?
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 1938-09-30 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 1938-09-30?
1938-09-30 is day 7 of Autumn Equinox (秋分) in this date reference. The next solar term is Cold Dew (寒露) on 1938-10-09.