Civil-date reference · 1911-05-20
May 20, 1911 BaZi Chart
Saturday, May 20, 1911 maps to a reference three-pillar record of 辛亥 · 癸巳 · 庚寅. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1911-05-20 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
1911-05-20 at a glance
| Gregorian date | Saturday, May 20, 1911 |
|---|---|
| Lunar date | 农历辛亥年四月廿二 · lunar month 四月, day 廿二 |
| Reference pillars | 辛亥 · 癸巳 · 庚寅 (year · month · day) |
| Day Master | Geng · Yang Metal · heavenly stem 庚 |
| Solar-term position | Day 14 of Start of Summer (立夏), beginning 1911-05-07 |
| Next solar term | Grain Buds (小满) · 1911-05-22 · 2 days away |
| Western constellation | Taurus (金牛) |
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 Pig · Xin Hai
The visible stem is Xin · Yin Metal; the branch is Hai · Pig · Water. Its Na Yin is 钗钏金, and the branch contains hidden stems 壬 · 甲. Open the full Jiazi record →
Yin Water Snake · Gui Si
The visible stem is Gui · Yin Water; the branch is Si · Snake · Fire. Its Na Yin is 长流水, and the branch contains hidden stems 丙 · 庚 · 戊. 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 May 1911
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 1911-05-20
What is the BaZi day pillar for Saturday, May 20, 1911?
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, May 20, 1911?
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 1911-05-20 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 1911-05-20?
1911-05-20 is day 14 of Start of Summer (立夏) in this date reference. The next solar term is Grain Buds (小满) on 1911-05-22.