Day pillar 54 of 60
丁巳 ding si
Fire stem over Fire branch. The yin fire day master, sitting on the Snake (巳).
Every structural fact about 丁巳 below can be checked against an almanac; only the passage marked conventionally read as is interpretation.
丁 above, 巳 below
The stem and the branch carry the same element (Fire), which is the most single-minded pairing in the cycle. Nothing here pulls in two directions.
Where 丁巳 sits in the five elements
Wood and Water do not appear anywhere in this pillar.
Fire leads at 77.8%, then earth at 11.1%.
What is buried inside 巳
巳 hides 3 stems. The primary is 丙 (Fire), the same element as the stem; behind it sit 庚 (Metal, what the stem restrains) and 戊 (Earth, what the stem produces).
丁 meeting 巳: the 帝旺 stage
The twelve stages (十二長生): yang stems run forward, yin stems backward.
丁 meets 巳 at the 帝旺 stage — peak.
巳 against 亥, with 申
Opposite across the cycle (六沖), and paired with (六合):
Nayin: 沙中土
Nayin (納音) groups the cycle in pairs, each with an image. This one shares its image with 丙辰: 沙中土, “earth in the sand.”
How 丁巳 is conventionally read
丁 is a flame held in the hand: smaller than 丙, more deliberate, warmer at close range. 巳 is the fire that has just caught, still gathering.
A fire-element day master on a fire footing — one of eight characters, which colours a chart and does not fix the person.
When the next 丁巳 days fall
The sixty-cycle repeats every sixty days, so this pillar returns roughly every two months. The next one is 9 December 2026 (Wednesday). Each is calculated at midday Beijing time; a birth in the hour before midnight can still belong to the previous 丁巳 day, because the day rolls at 23:00 true solar time.
| Date | Weekday | Year / month / day pillar |
|---|---|---|
| 2026-12-09 | Wednesday | 丙午 庚子 丁巳 |
| 2027-02-07 | Sunday | 丁未 壬寅 丁巳 |
| 2027-04-08 | Thursday | 丁未 甲辰 丁巳 |
| 2027-06-07 | Monday | 丁未 丙午 丁巳 |
| 2027-08-06 | Friday | 丁未 丁未 丁巳 |
| 2027-10-05 | Tuesday | 丁未 己酉 丁巳 |
Showing up to eight of the 6 occurrences in the next twelve months, from 2026-10-31.
丁 on six different footings
Six pillars carry this stem. It is the same day master every time, so everything that differs below is caused by the branch underneath it:
| Pillar | Branch | Footing | Stage |
|---|---|---|---|
| 丁卯 | 卯 · Rabbit | Fire on Wood | illness |
| 丁丑 | 丑 · Ox | Fire on Earth | tomb |
| 丁亥 | 亥 · Pig | Fire on Water | conception |
| 丁酉 | 酉 · Rooster | Fire on Metal | birth |
| 丁未 | 未 · Goat | Fire on Earth | cap and girdle |
| 丁巳 ← | 巳 · Snake | Fire on Fire | peak |
Here the footing is Fire — the same element as the stem. The other five branches this stem sits on are 卯 (Wood), 丑 (Earth), 亥 (Water), 酉 (Metal), 未 (Earth).
The Fire element · The Fire element · 30 worked reference charts · How the calculation is verified