Civil-date reference · 2010-05-09
May 9, 2010 BaZi Chart
Sunday, May 9, 2010 maps to a reference three-pillar record of 庚寅 · 辛巳 · 己未. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 2010-05-09 is Ji · Yin Earth, and the day pillar is Yin Earth Goat (己未). This is a date record, not a complete personal reading.
Deterministic record
2010-05-09 at a glance
| Gregorian date | Sunday, May 9, 2010 |
|---|---|
| Lunar date | 农历庚寅年三月廿六 · lunar month 三月, day 廿六 |
| Reference pillars | 庚寅 · 辛巳 · 己未 (year · month · day) |
| Day Master | Ji · Yin Earth · heavenly stem 己 |
| Solar-term position | Day 5 of Start of Summer (立夏), beginning 2010-05-05 |
| Next solar term | Grain Buds (小满) · 2010-05-21 · 12 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.
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 →
Yin Metal Snake · Xin Si
The visible stem is Xin · Yin Metal; the branch is Si · Snake · Fire. Its Na Yin is 白蜡金, and the branch contains hidden stems 丙 · 庚 · 戊. Open the full Jiazi record →
Yin Earth Goat · Ji Wei
The visible stem is Ji · Yin Earth; the branch is Wei · Goat · Earth. Its Na Yin is 天上火, and the branch contains hidden stems 己 · 丁 · 乙. 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 2010
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 2010-05-09
What is the BaZi day pillar for Sunday, May 9, 2010?
In this civil-date reference, the day pillar is 己未 (Yin Earth Goat), cycle position 56 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Sunday, May 9, 2010?
The reference Day Master is 己, Ji · Yin 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 2010-05-09 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 2010-05-09?
2010-05-09 is day 5 of Start of Summer (立夏) in this date reference. The next solar term is Grain Buds (小满) on 2010-05-21.