Civil-date reference · 1917-07-20
July 20, 1917 BaZi Chart
Friday, July 20, 1917 maps to a reference three-pillar record of 丁巳 · 丁未 · 癸亥. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1917-07-20 is Gui · Yin Water, and the day pillar is Yin Water Pig (癸亥). This is a date record, not a complete personal reading.
Deterministic record
1917-07-20 at a glance
| Gregorian date | Friday, July 20, 1917 |
|---|---|
| Lunar date | 农历丁巳年六月初二 · lunar month 六月, day 初二 |
| Reference pillars | 丁巳 · 丁未 · 癸亥 (year · month · day) |
| Day Master | Gui · Yin Water · heavenly stem 癸 |
| Solar-term position | Day 13 of Minor Heat (小暑), beginning 1917-07-08 |
| Next solar term | Major Heat (大暑) · 1917-07-23 · 3 days away |
| Western constellation | Cancer (巨蟹) |
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 Fire Snake · Ding Si
The visible stem is Ding · Yin Fire; the branch is Si · Snake · Fire. Its Na Yin is 沙中土, and the branch contains hidden stems 丙 · 庚 · 戊. Open the full Jiazi record →
Yin Fire Goat · Ding Wei
The visible stem is Ding · Yin Fire; the branch is Wei · Goat · Earth. Its Na Yin is 天河水, and the branch contains hidden stems 己 · 丁 · 乙. Open the full Jiazi record →
Yin Water Pig · Gui Hai
The visible stem is Gui · Yin Water; the branch is Hai · Pig · Water. Its Na Yin is 大海水, and the branch contains hidden stems 壬 · 甲. 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 July 1917
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 1917-07-20
What is the BaZi day pillar for Friday, July 20, 1917?
In this civil-date reference, the day pillar is 癸亥 (Yin Water Pig), cycle position 60 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Friday, July 20, 1917?
The reference Day Master is 癸, Gui · Yin Water. 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 1917-07-20 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 1917-07-20?
1917-07-20 is day 13 of Minor Heat (小暑) in this date reference. The next solar term is Major Heat (大暑) on 1917-07-23.