Yin Fire year pillar
Fire Snake 丁巳
The Ding 丁 year stem carries Fire; the Snake's Si 巳 branch keeps its fixed Fire coordinate.
Year pillar丁巳Yin Fire Snake
Five Phases direction
Fire meets Fire
Both positions carry Fire, so the element repeats rather than generating or controlling another element.
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, 丙辰 Yang Fire Dragon.
Exact date records
Fire Snake years, 1901–2099
The complete 丁巳 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
1917
- Lunar-year boundary
- 23 January 1917 → 10 February 1918
- Li Chun · Start of Spring
- 4 February 1917 at 16:57
- Leap month
- Month 2
Complete signature return
1977
- Lunar-year boundary
- 18 February 1977 → 6 February 1978
- Li Chun · Start of Spring
- 4 February 1977 at 06:33
- Leap month
- None · twelve lunar months
Complete signature return
2037
- Lunar-year boundary
- 15 February 2037 → 3 February 2038
- Li Chun · Start of Spring
- 3 February 2037 at 20:11
- Leap month
- None · twelve lunar months
Complete signature return
2097
- Lunar-year boundary
- 12 February 2097 → 31 January 2098
- Li Chun · Start of Spring
- 3 February 2097 at 09:41
- Leap month
- None · twelve lunar months
Fire Snake with the current Yang Fire Horse year
Seasonal meeting
Seasonal meeting 三会
No named stem relation
丁 with 丙
Fire meets Fire
Fire 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.