Yin Wood year pillar
Wood Snake 乙巳
The Yi 乙 year stem carries Wood; the Snake's Si 巳 branch keeps its fixed Fire coordinate.
Year pillar乙巳Yin Wood Snake
Pillar anatomy
One stem above one branch
Earthly branch
Si branch · Yin Fire
- Solar coordinate
- Month 4, from Start of Summer
- Season · direction
- Summer · SSE
- Double-hour
- 09:00–11:00
This Na Yin is shared with the other pillar in its two-pillar cycle pair, 甲辰 Yang Wood Dragon.
Exact date records
Wood Snake years, 1901–2099
The complete 乙巳 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
1905
- Lunar-year boundary
- 4 February 1905 → 24 January 1906
- Li Chun · Start of Spring
- 4 February 1905 at 19:15
- Leap month
- None · twelve lunar months
Complete signature return
1965
- Lunar-year boundary
- 2 February 1965 → 20 January 1966
- Li Chun · Start of Spring
- 4 February 1965 at 08:46
- Leap month
- None · twelve lunar months
Complete signature return
2025
- Lunar-year boundary
- 29 January 2025 → 16 February 2026
- Li Chun · Start of Spring
- 3 February 2025 at 22:10
- Leap month
- Month 6
Complete signature return
2085
- Lunar-year boundary
- 26 January 2085 → 13 February 2086
- Li Chun · Start of Spring
- 3 February 2085 at 11:29
- Leap month
- Month 5
Wood Snake with the current Yang Fire Horse year
Seasonal meeting
Seasonal meeting 三会
No named stem relation
乙 with 丙
Wood generates Fire
Wood year stem with the current Fire year stem.
Same branch, five stems
Compare all five Snake elements
Calendar and pillar conventions are recorded in the methodology.