己巳

Ji Si (己巳) — Yin Earth on the Snake

Fertile soil warmed by a hidden sun.

Heavenly stem: 己 · Ji · Yin Earth
Earthly branch: 巳 · Si · Snake
Na Yin: Great Forest Wood
Hidden stems: Bing, Geng, Wu
Hidden gods: Direct Resource, Hurting Officer, Rob Wealth
Branch element: Fire

A garden plot heated from below, always ready to grow something.

In BaZi, the day pillar is the pillar of the self. Its heavenly stem is your Day Master — the reference point for every other character in the chart. A person born on a Ji Si day has Ji earth as their Day Master, sitting on the 巳 (fire) branch.

Personality

Ji earth is nurturing and adaptive; the Snake adds insight and a strategic streak. You read situations fast and prefer to influence quietly rather than argue openly.

Work and vocation

Support roles with real influence: product, HR, operations, teaching, consulting, healthcare.

Relationships

You give care easily and ask for it late. Practise stating needs before they become resentment.

Health and rhythm

Digestion and circulation. Warm food, regular walks, and less late-night mental replay.

Upcoming 己巳 days

The sexagenary day cycle repeats every sixty days. These are the next dates that fall on Ji Si.

2026-12-21
2027-02-19
2027-04-20
2027-06-19
2027-08-18
2027-10-17

Is this your day pillar?

You do not need to know your day pillar in advance. Enter your birth date, time and place, and the calculator works out all four pillars — then shows how your Day Master reads against the rest of the chart.

Cast your free BaZi chart

Other Ji days

All six Ji pillars share the same Day Master. For the stem on its own — its nature, strengths and blind spots — read the Ji Day Master guide.

This page is a study aid for classical BaZi symbolism, not a prediction. It describes tendencies and temperaments, not events, outcomes or dates. For medical, legal or financial decisions, consult a qualified professional.