乙亥

Yi Hai (乙亥) — Yin Wood on the Pig

A water-fed vine at the edge of a river.

Heavenly stem: 乙 · Yi · Yin Wood
Earthly branch: 亥 · Hai · Pig
Na Yin: Fire on the Mountain Top
Hidden stems: Ren, Jia
Hidden gods: Direct Resource, Rob Wealth
Branch element: Water

Flexible wood drinking from a generous stream.

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 Yi Hai day has Yi wood as their Day Master, sitting on the 亥 (water) branch.

Personality

Yi wood adapts; the Pig gives generosity, ease and a taste for comfort. You are likable, imaginative and quietly stubborn, with a strong instinct for what a situation needs.

Work and vocation

Creative and people-facing roles: content, brand, hospitality, teaching, community building.

Relationships

Warm and accommodating, occasionally over-giving. Let others carry part of the weight.

Health and rhythm

Digestion and fluid retention. Gentle movement beats intense bursts.

Upcoming 乙亥 days

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

2026-12-27
2027-02-25
2027-04-26
2027-06-25
2027-08-24
2027-10-23

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 Yi days

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