Day Master Directory — the ten that say who you are
Your Day Master (日干) is the one character among the eight in your Saju chart that stands for you — the Heavenly Stem of the day you were born. A reading starts here, then asks how the other seven characters support you or draw you down. There are ten Heavenly Stems in all: each of the five elements splits into Yang and Yin, and the old texts drew each one as a thing in nature.
The ten Heavenly Stems
Gap Wood · Tall tree
Yang Wood · Growth & drive
A tall tree growing straight toward the light — it bends for no one.
Eul Wood · Vine
Yin Wood · Growth & drive
A vine — it climbs by leaning, wraps around what's solid, and outlasts the storm that snaps the tree.
Byeong Fire · The sun
Yang Fire · Expression & warmth
The midday sun — it shines on everyone at once and hides nothing.
Jeong Fire · Candle
Yin Fire · Expression & warmth
A candle in a dark room — small and steady, warming the one in front of it.
Mu Earth · Mountain
Yang Earth · Steadiness & care
A mountain — unhurried, immovable, the thing others come to lean on.
Gi Earth · Garden soil
Yin Earth · Steadiness & care
Tilled garden soil — quiet and giving, where things take root and grow.
Gyeong Metal · Raw ore
Yang Metal · Decisiveness & clarity
Raw ore, an unforged blade — direct, decisive, cutting to the point.
Sin Metal · Cut jewel
Yin Metal · Decisiveness & clarity
A cut jewel — refined and exact, and quietly stung by a single scratch.
Im Water · The open sea
Yang Water · Wisdom & flow
The open sea — wide and deep, moving where it pleases.
Gye Water · Rain & dew
Yin Water · Wisdom & flow
Rain and dew — soft and quiet, seeping in until it reaches everywhere.
Strong vs weak isn’t good vs bad
When a lot of the same energy backs your Day Master up, the chart is called ‘strong’ (身强); when it’s surrounded by forces that spend and press on it, ‘weak’ (身弱). Neither is better — they just balance in different ways. A strong Day Master settles when it has an outlet to pour into (work, expression); a weak one settles when it has people and surroundings to lean on. A chart isn’t a scorecard — it’s a mirror for reading the flow.
What is a Day Master (日干)?
Your Day Master is the Heavenly Stem of the day you were born — the single character among the eight in your Saju chart that stands for you. Every other character is read against it: what supports you, what draws you down. There are ten Day Masters in all, since each of the five elements (Wood, Fire, Earth, Metal, Water) splits into a Yang and a Yin form.
Do I need my birth time to find my Day Master?
No. Your Day Master comes from your birth date, so you can find it whether or not you know the time you were born. The hour only adds the hour pillar and refines your element balance — it doesn't change the Day Master itself.
Why read the Day Master instead of my zodiac animal?
Your zodiac animal comes from your birth year, so everyone born that year shares it. The Day Master is tied to your birth day and is far more personal — the whole chart is read by reflecting it back onto this one character. If the zodiac animal is a broad generational marker, the Day Master is the axis your chart turns on.
Which Day Master is yours?
Your birth date is enough — no birth time needed for this part. Free.
Find my Day MasterThe chart is computed by our own deterministic 만세력 engine — true solar time, the 24 solar terms, and historical DST, verified against the Korea Astronomy and Space Science Institute (KASI) to within ±1–2 minutes. Things general chatbots routinely get wrong.