Civil-date reference · 1959-04-21
April 21, 1959 BaZi Chart
Tuesday, April 21, 1959 maps to a reference three-pillar record of 己亥 · 戊辰 · 癸酉. The hour pillar remains unresolved until birth time and place are supplied.
Answer first: the reference Day Master for 1959-04-21 is Gui · Yin Water, and the day pillar is Yin Water Rooster (癸酉). This is a date record, not a complete personal reading.
Deterministic record
1959-04-21 at a glance
| Gregorian date | Tuesday, April 21, 1959 |
|---|---|
| Lunar date | 农历己亥年三月十四 · lunar month 三月, day 十四 |
| Reference pillars | 己亥 · 戊辰 · 癸酉 (year · month · day) |
| Day Master | Gui · Yin Water · heavenly stem 癸 |
| Solar-term position | Day 1 of Grain Rain (谷雨), beginning 1959-04-21 |
| Next solar term | Start of Summer (立夏) · 1959-05-06 · 15 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 Pig · Ji Hai
The visible stem is Ji · Yin Earth; the branch is Hai · Pig · Water. Its Na Yin is 平地木, and the branch contains hidden stems 壬 · 甲. Open the full Jiazi record →
Yang Earth Dragon · Wu Chen
The visible stem is Wu · Yang Earth; the branch is Chen · Dragon · Earth. Its Na Yin is 大林木, and the branch contains hidden stems 戊 · 乙 · 癸. Open the full Jiazi record →
Yin Water Rooster · Gui You
The visible stem is Gui · Yin Water; the branch is You · Rooster · Metal. Its Na Yin is 剑锋金, and the branch contains hidden stem 辛. 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 April 1959
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 1959-04-21
What is the BaZi day pillar for Tuesday, April 21, 1959?
In this civil-date reference, the day pillar is 癸酉 (Yin Water Rooster), cycle position 10 of 60. A personal chart must still resolve the birthplace, local clock time, and day boundary.
What is the Day Master for Tuesday, April 21, 1959?
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 1959-04-21 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 1959-04-21?
1959-04-21 is day 1 of Grain Rain (谷雨) in this date reference. The next solar term is Start of Summer (立夏) on 1959-05-06.