Bazi · Day Master

What is the Day Master? Find your Bazi Day Master

The Day Master is the heavenly stem of the day pillar in a Bazi chart — the stem of the very day you were born — and it anchors the whole chart: strong and missing elements, the Ten Gods, and whether the chart is strong or weak are all measured from it. There are ten Day Masters, one for each heavenly stem: Jia and Yi are Wood; Bing and Ding are Fire; Wu and Ji are Earth; Geng and Xin are Metal; Ren and Gui are Water. The tool below finds your Day Master from your birth date, free and with no account; the rest of the page explains where the Day Master sits, what each stem traditionally suggests and how to read it without turning it into a label.

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No name or account needed, nothing is stored. For adults aged 18+. Without a birth time the chart has three pillars — see what you can read without a birth time.

The day pillar's stem

The Day Master is the heavenly stem of the day you were born.

The chart's anchor

Every element relationship and every Ten God is measured from the Day Master.

Ten stems, ten images

Each stem carries a traditional image, used for reflection.

Where the Day Master sits in the chart

A Bazi chart has four pillars — year, month, day, hour — each made of a heavenly stem on top and an earthly branch below. The heavenly stem of the day pillar is the Day Master. For example, someone born on 15/05/1990 has the day pillar Canh Thìn, so the Day Master is Canh (Geng), a Metal stem. Because the day pillar follows the birth date, you do not need your birth time to know your Day Master — unless you were born close to midnight, when the true-solar-time correction can move you to the neighbouring day.

The ten Day Masters in tradition

Each line below is exactly the explanation in Inti Soul's chart dictionary — what appears when you tap a stem on your chart. Read them as images for reflection, not personality descriptions.

Giáp (Jia) — Yang Wood stem; traditionally likened to a tall tree: upright, steady and inclined to lead the way.
Ất (Yi) — Yin Wood stem; traditionally likened to grasses, flowers and vines: supple, resilient and good at finding a way through.
Bính (Bing) — Yang Fire stem; traditionally likened to the sun: radiant, warm and shining widely.
Đinh (Ding) — Yin Fire stem; traditionally likened to a lamp or candle flame: close warmth that lights up small corners.
Mậu (Wu) — Yang Earth stem; traditionally likened to mountains and hills: steady, dependable and a place to lean on.
Kỷ (Ji) — Yin Earth stem; traditionally likened to fields and gardens: fertile, accommodating and nourishing growth.
Canh (Geng) — Yang Metal stem; traditionally likened to raw metal: strong and direct, becoming a useful tool through tempering.
Tân (Xin) — Yin Metal stem; traditionally likened to precious metal and jewellery: refined, sharp and attentive to finish.
Nhâm (Ren) — Yang Water stem; traditionally likened to great rivers and the sea: expansive, always moving and able to hold a lot.
Quý (Gui) — Yin Water stem; traditionally likened to rain and dew: gentle, soaking in and nourishing quietly.

The Day Master and the Ten Gods

Every other heavenly stem in the chart — hidden stems inside the branches included — is named by its relationship to the Day Master. Same yin or yang as the Day Master takes the first name, the opposite takes the second:

Same element as the Day Master: Companion (Tỷ Kiên), Rob Wealth (Kiếp Tài).
Element the Day Master produces: Eating God (Thực Thần), Hurting Officer (Thương Quan).
Element the Day Master controls: Indirect Wealth (Thiên Tài), Direct Wealth (Chính Tài).
Element that controls the Day Master: Seven Killings (Thất Sát), Direct Officer (Chính Quan).
Element that produces the Day Master: Indirect Resource (Thiên Ấn), Direct Resource (Chính Ấn).
For a Geng (yang Metal) Day Master: Geng is Tỷ Kiên, Xin is Kiếp Tài, Ren is Thực Thần, Gui is Thương Quan, Jia is Thiên Tài, Yi is Chính Tài, Bing is Thất Sát, Ding is Chính Quan, Wu is Thiên Ấn, Ji is Chính Ấn.

A strong or weak Day Master

Once you know the Day Master, the next question is how strong it is in the chart. Inti Soul's engine adds the weight of the Day Master's element to the element that produces it: 50% or more is a strong Day Master, 32% or less is a weak one, and in between is balanced. The tool on this page prints that figure; the useful element is then derived from it by the support-restrain method.

Reading the Day Master usefully

The Day Master is “you” in the chart, but one stem is not enough to say who you are. Two people with a Geng Day Master can be entirely different because their other pillars, birth season and element balance differ. Use the stem's image as a question: where does this quality show up in my life, and when does it tip into excess?

See all four pillars around your Day Master

The Bazi chart online page builds all four pillars, the element weights and whether your Day Master is strong or weak from your birth date and time — free, no account needed.

Build a Bazi chart

For self-understanding and reflection — not a verdict.

Frequently asked questions

What is the Day Master?

It is the heavenly stem of the day pillar in a Bazi chart, the stem of your birth day. It anchors the reading of the elements, the Ten Gods and the chart's strength.

How do I find my Day Master?

Enter your solar birth date in the tool on this page: the day pillar appears, and its first character is your Day Master.

Do I need my birth time for the Day Master?

No, because the day pillar follows the birth date. Only a birth close to midnight can be moved to the neighbouring day by the true-solar-time correction.

Does the Day Master decide my personality?

No. The Day Master is an image for reflection; personality also depends on the whole chart, your surroundings and your choices.