Yin Earth year pillar
Earth Ox 己丑
The Ji 己 year stem carries Earth; the Ox's Chou 丑 branch keeps its fixed Earth coordinate.
Year pillar己丑Yin Earth Ox
Five Phases direction
Earth meets Earth
Both positions carry Earth, so the element repeats rather than generating or controlling another element.
Pillar anatomy
One stem above one branch
Earthly branch
Chou branch · Yin Earth
- Solar coordinate
- Month 12, from Minor Cold
- Season · direction
- Winter · NNE
- Double-hour
- 01:00–03:00
This Na Yin is shared with the other pillar in its two-pillar cycle pair, 戊子 Yang Earth Rat.
Exact date records
Earth Ox years, 1901–2099
The complete 己丑 pillar returns every sixty years. Each record below keeps the same animal, stem element, and polarity, while its exact lunar-year boundary and leap-month pattern change.
Complete signature return
1949
- Lunar-year boundary
- 29 January 1949 → 16 February 1950
- Li Chun · Start of Spring
- 4 February 1949 at 11:22
- Leap month
- Month 7
Complete signature return
2009
- Lunar-year boundary
- 26 January 2009 → 13 February 2010
- Li Chun · Start of Spring
- 4 February 2009 at 00:49
- Leap month
- Month 5
Complete signature return
2069
- Lunar-year boundary
- 23 January 2069 → 10 February 2070
- Li Chun · Start of Spring
- 3 February 2069 at 14:20
- Leap month
- Month 4
Earth Ox with the current Yang Fire Horse year
Harm
Harm 六害
No named stem relation
己 with 丙
Fire generates Earth
Earth year stem with the current Fire year stem.
Same branch, five stems
Compare all five Ox elements
Calendar and pillar conventions are recorded in the methodology.