Civil-date reference · 1921-08-15
August 15, 1921 BaZi Chart
Monday, August 15, 1921 maps to a reference three-pillar record of 辛酉 · 丙申 · 庚戌. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1921-08-15 is Geng · Yang Metal, and the day pillar is Yang Metal Dog (庚戌). This is a date record, not a complete personal reading.
Deterministic record
1921-08-15 at a glance
| Gregorian date | Monday, August 15, 1921 |
|---|---|
| Lunar date | 农历辛酉年七月十二 · lunar month 七月, day 十二 |
| Reference pillars | 辛酉 · 丙申 · 庚戌 (year · month · day) |
| Day Master | Geng · Yang Metal · heavenly stem 庚 |
| Solar-term position | Day 8 of Start of Autumn (立秋), beginning 1921-08-08 |
| Next solar term | End of Heat (处暑) · 1921-08-24 · 9 days away |
| Western constellation | Leo (狮子) |
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 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 →
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 →
Yang Metal Dog · Geng Xu
The visible stem is Geng · Yang Metal; the branch is Xu · Dog · Earth. Its Na Yin is 钗钏金, and the branch contains hidden stems 戊 · 辛 · 丁. 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 August 1921
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 1921-08-15
What is the BaZi day pillar for Monday, August 15, 1921?
In this civil-date reference, the day pillar is 庚戌 (Yang Metal Dog), cycle position 47 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Monday, August 15, 1921?
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 1921-08-15 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 1921-08-15?
1921-08-15 is day 8 of Start of Autumn (立秋) in this date reference. The next solar term is End of Heat (处暑) on 1921-08-24.