Civil-date reference · 2000-01-31
January 31, 2000 BaZi Chart
Monday, January 31, 2000 maps to a reference three-pillar record of 己卯 · 丁丑 · 戊子. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 2000-01-31 is Wu · Yang Earth, and the day pillar is Yang Earth Rat (戊子). This is a date record, not a complete personal reading.
Deterministic record
2000-01-31 at a glance
| Gregorian date | Monday, January 31, 2000 |
|---|---|
| Lunar date | 农历己卯年十二月廿五 · lunar month 十二月, day 廿五 |
| Reference pillars | 己卯 · 丁丑 · 戊子 (year · month · day) |
| Day Master | Wu · Yang Earth · heavenly stem 戊 |
| Solar-term position | Day 11 of Major Cold (大寒), beginning 2000-01-21 |
| Next solar term | Start of Spring (立春) · 2000-02-04 · 4 days away |
| Western constellation | Aquarius (水瓶) |
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 Earth Rabbit · Ji Mao
The visible stem is Ji · Yin Earth; the branch is Mao · Rabbit · Wood. Its Na Yin is 城头土, and the branch contains hidden stem 乙. Open the full Jiazi record →
Yin Fire Ox · Ding Chou
The visible stem is Ding · Yin Fire; the branch is Chou · Ox · Earth. Its Na Yin is 涧下水, and the branch contains hidden stems 己 · 癸 · 辛. Open the full Jiazi record →
Yang Earth Rat · Wu Zi
The visible stem is Wu · Yang Earth; the branch is Zi · Rat · Water. Its Na Yin is 霹雳火, and the branch contains hidden stem 癸. 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 January 2000
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 2000-01-31
What is the BaZi day pillar for Monday, January 31, 2000?
In this civil-date reference, the day pillar is 戊子 (Yang Earth Rat), cycle position 25 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Monday, January 31, 2000?
The reference Day Master is 戊, Wu · Yang Earth. 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 2000-01-31 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 2000-01-31?
2000-01-31 is day 11 of Major Cold (大寒) in this date reference. The next solar term is Start of Spring (立春) on 2000-02-04.