Is Saju the same as BaZi?

Yes. Saju and BaZi are the same system — the Four Pillars of Destiny — under different names. BaZi (Chinese, 八字) means eight characters; Saju (Korean, 사주) means four pillars, and the fuller term Saju Palja (사주팔자) means four pillars, eight characters. Both build the identical chart from the same birth data: four pillars, eight characters, the same Heavenly Stems and Earthly Branches, read through the five elements.

What is the difference between Saju and BaZi?

Mostly the name and the culture around it. The underlying chart is the same. Where they can differ is in interpretive tradition and a few technical conventions — for example, how a school adjusts for local solar time, or how it handles the late-night Rat hour that straddles midnight. These are differences between schools as much as between countries, and they exist inside both Chinese and Korean practice.

Is Saju Korean or Chinese?

The method originated in China as the Four Pillars of Destiny and spread across East Asia. Saju is the Korean name and tradition for it, and it is enormously popular in Korea — consulted for relationships, marriage, careers, and naming. So the system is Chinese in origin but thoroughly at home in Korean culture, where it is usually called Saju rather than BaZi.

Comparisons · 八字 vs 사주

BaZi vs Saju: the same chart, two names.

If you have had a "Saju reading" in Seoul and a "BaZi reading" in Taipei, here is the surprise: you were reading the same chart twice. BaZi and Saju are not rival systems — they are the Chinese and Korean names for one and the same thing, the Four Pillars of Destiny. The differences are accent, not language.

Same bones

Both take your birth year, month, day, and hour and turn them into four pillars — eight characters in all — built from the same ten Heavenly Stems and twelve Earthly Branches, read through the same five elements and the same Day Master. Nothing in the underlying structure changes when you cross the border. The Korean term even says so out loud: Saju Palja (사주팔자) means "four pillars, eight characters" — the exact same idea as 八字.

Side by side

Name & meaning

BaZi 八字Chinese for "eight characters." Common in Chinese-speaking regions.

Saju 사주 (四柱)Korean for "four pillars" — fuller form Saju Palja, "four pillars, eight characters."

The chart itself

BaZi 八字Four pillars, eight characters, stems & branches, five elements, Day Master, Ten Gods.

Saju 사주Identical — the same pillars, characters, elements, and Day Master.

Where schools can differ

BaZi 八字Conventions vary by master — for example, how local solar time is adjusted, or how the late-night Rat hour straddling midnight is assigned.

Saju 사주The same kinds of choices exist in Korean practice; the variation is between schools as much as between countries.

Cultural home

BaZi 八字China and the Chinese diaspora — careers, marriage dates, naming.

Saju 사주Hugely popular in Korea for dating, marriage, business, and naming; a familiar part of everyday life.

So which should you read?

It is not really a choice between two systems — it is the same system in two dialects. The only things that meaningfully vary are the interpretive tradition a reader was trained in and a few technical conventions, such as how the boundary at midnight is drawn. Pick the tradition whose voice you like; the chart underneath will be the same eight characters either way.

See your Four Pillars, by any name.

Whether you call it BaZi or Saju, Bornchart computes the same eight characters from your birth date and time, and explains them in plain English. Free, no signup, about thirty seconds.

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Keep going: the stems and branches both traditions share, BaZi vs Western astrology, reading a chart with no birth time, or how the chart is calculated.