辛
Metal
Korean Saju (四柱)
Know yourself by the moment you began.
Saju is a thousand-year-old way of reading who you are from the exact moment you were born. Pillar reads it the way it deserves to be read — computed precisely, grounded in the classics, and honest about what it can't know.
Under a minute · no account needed to see your chart.
Four pillars — Year, Month, Day, Hour. The name is the chart.
Why Pillar exists
Saju guided people for a thousand years. Then apps taught it to guess.
Most saju apps bolt a chatbot onto an approximate chart — and it starts inventing. We built Pillar to do the opposite. Four principles hold it up.
Principle I, proven
Why most saju apps get your chart wrong
Your birth location shifts the pillars — true solar time and time-zone history change the answer. Skip that, and you compute a different, wrong chart. Same person, both ways:
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◈ Pillar — true solar time
✕ Typical app — generic frame
New to saju?
What your birth chart actually is
Western astrology gives you one sign from your birth month. Saju reads the whole moment — date, time, and place — as a small map of your temperament. In three steps.
Date15 June 1990
Time2:30 PM
CitySeoul, KR
True solar time at that exact spot on Earth
Year
卯
Wood
Month
壬
Water
午
Fire
Day · You
甲
Wood
辰
Earth
Hour
庚
Metal
戌
Earth
Wood
growth, vision
Fire
passion, warmth
Earth
stability, care
Metal
focus, resolve
Water
wisdom, depth
Step 1 of 3
It starts with your exact birth moment
Lots of Water and no Fire? You might be deep and adaptable, and thrive when you seek out warmth and drive. That's the kind of thing your chart reveals — and Pillar reads it for you, citing the classics.
From the journal
Go deeper before you begin.
Short, honest guides to what your chart actually is — no mysticism for its own sake, no guessing.
What Pillar makes for you
Not another horoscope. Real things, from your real chart.
Every piece below is generated from one exact chart — the same person, June 15 1990, Seoul. Tap through.
Everyone deserves to be read accurately
Meet the version of saju that respects both the tradition and the truth.
Reveal my chart — freeNo account needed to see your chart.