Civil-date reference · 2009-05-11
May 11, 2009 BaZi Chart
Monday, May 11, 2009 maps to a reference three-pillar record of 己丑 · 己巳 · 丙辰. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 2009-05-11 is Bing · Yang Fire, and the day pillar is Yang Fire Dragon (丙辰). This is a date record, not a complete personal reading.
Deterministic record
2009-05-11 at a glance
| Gregorian date | Monday, May 11, 2009 |
|---|---|
| Lunar date | 农历己丑年四月十七 · lunar month 四月, day 十七 |
| Reference pillars | 己丑 · 己巳 · 丙辰 (year · month · day) |
| Day Master | Bing · Yang Fire · heavenly stem 丙 |
| Solar-term position | Day 7 of Start of Summer (立夏), beginning 2009-05-05 |
| Next solar term | Grain Buds (小满) · 2009-05-21 · 10 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 Earth Ox · Ji Chou
The visible stem is Ji · Yin Earth; the branch is Chou · Ox · Earth. Its Na Yin is 霹雳火, and the branch contains hidden stems 己 · 癸 · 辛. Open the full Jiazi record →
Yin Earth Snake · Ji Si
The visible stem is Ji · Yin Earth; the branch is Si · Snake · Fire. Its Na Yin is 大林木, and the branch contains hidden stems 丙 · 庚 · 戊. Open the full Jiazi record →
Yang Fire Dragon · Bing Chen
The visible stem is Bing · Yang Fire; the branch is Chen · Dragon · Earth. Its Na Yin is 沙中土, and the branch contains hidden stems 戊 · 乙 · 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 May 2009
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 2009-05-11
What is the BaZi day pillar for Monday, May 11, 2009?
In this civil-date reference, the day pillar is 丙辰 (Yang Fire Dragon), cycle position 53 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Monday, May 11, 2009?
The reference Day Master is 丙, Bing · Yang Fire. 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 2009-05-11 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 2009-05-11?
2009-05-11 is day 7 of Start of Summer (立夏) in this date reference. The next solar term is Grain Buds (小满) on 2009-05-21.