Civil-date reference · 2013-10-31
October 31, 2013 BaZi Chart
Thursday, October 31, 2013 maps to a reference three-pillar record of 癸巳 · 壬戌 · 庚午. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 2013-10-31 is Geng · Yang Metal, and the day pillar is Yang Metal Horse (庚午). This is a date record, not a complete personal reading.
Deterministic record
2013-10-31 at a glance
| Gregorian date | Thursday, October 31, 2013 |
|---|---|
| Lunar date | 农历癸巳年九月廿七 · lunar month 九月, day 廿七 |
| Reference pillars | 癸巳 · 壬戌 · 庚午 (year · month · day) |
| Day Master | Geng · Yang Metal · heavenly stem 庚 |
| Solar-term position | Day 9 of Frost Descent (霜降), beginning 2013-10-23 |
| Next solar term | Start of Winter (立冬) · 2013-11-07 · 7 days away |
| Western constellation | Scorpio (天蝎) |
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 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 Water Dog · Ren Xu
The visible stem is Ren · Yang Water; the branch is Xu · Dog · Earth. Its Na Yin is 大海水, and the branch contains hidden stems 戊 · 辛 · 丁. Open the full Jiazi record →
Yang Metal Horse · Geng Wu
The visible stem is Geng · Yang Metal; the branch is Wu · Horse · Fire. Its Na Yin is 路旁土, and the branch contains hidden stems 丁 · 己. 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 October 2013
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 2013-10-31
What is the BaZi day pillar for Thursday, October 31, 2013?
In this civil-date reference, the day pillar is 庚午 (Yang Metal Horse), cycle position 7 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Thursday, October 31, 2013?
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 2013-10-31 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 2013-10-31?
2013-10-31 is day 9 of Frost Descent (霜降) in this date reference. The next solar term is Start of Winter (立冬) on 2013-11-07.