Geng Chen 庚辰 Day Pillar
Geng Chen 庚辰 is number 17 of the sixty. The Day Master is Geng 庚, yang Metal; the branch Chen 辰 is Earth, zodiac Dragon. Na Yin is White Wax Metal.
At a glance
| Position in the cycle | 17 / 60 |
|---|---|
| Day Master (stem) | 庚 |
| Day branch | 辰 |
| Day Master element | yangMetal |
| Branch element | Earth |
| Zodiac | Dragon |
| Na Yin | White Wax Metal |
| Hidden stems | Wu 戊, Yi 乙, Gui 癸 |
| Void branches | Shen 申, You 酉 |
Hidden stems and their Ten Gods
A branch is more than its surface element. Chen 辰 hides Wu 戊, Yi 乙, Gui 癸; read against the Day Master Geng 庚 they give the Ten God relations below. Hidden stems are what element strength is actually judged on — counting only the four visible stems badly understates what the branches carry.
| Hidden stems | Day Master element | Ten God |
|---|---|---|
| Wu 戊 | Earth | Indirect Resource |
| Yi 乙 | Wood | Direct Wealth |
| Gui 癸 | Water | Hurting Officer |
Next Geng Chen 庚辰 days
Day pillars run on a fixed 60-day cycle independent of month and year. The dates below are derived straight from the day count, so no calendar reform affects them.
- Calculating…
Where Geng Chen 庚辰 sits in a chart
The day pillar is the only one read from itself — every Ten God in the year, month and hour pillars is defined relative to the Day Master Geng 庚. Two people born in the same year and month with different day stems therefore have completely different charts. In Geng Chen 庚辰 the Day Master Geng 庚 is yang Metal and sits on Chen 辰, which is Earth; the relation between them is branch produces the Day Master. This seat is classically read as the Day Master's immediate environment.
Related pillars
The other five pillars sharing the Day Master Geng 庚, and the other four sharing the branch Chen 辰:
Same Day Master (Geng 庚)
Same branch (Chen 辰)
Sources
- lunar-javascript (6tail, MIT) — solar-term instants, 干支 pillars, 大運/流年, 胎元/命宮/身宮 and the almanac tables.
- Hong Kong Observatory, Date and Time of the 24 Solar Terms — the reference used to check solar-term instants.
- Xieji Bianfang Shu and Sanming Tonghui — classical sources for the Wuhu Dun and Wushu Dun stem rules, hidden stems and the Ten Gods.
Algorithms last checked: 2026-07 · Method and accuracy