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I went through the available saju calculators. None of them got the math right for people at my longitude. I tested charts of people born across Europe. Each tool returned a different sun position for the same birth moment.

Wrocław sits 2° east of the 15° meridian that defines Central European Time. That's 8 minutes of offset. Add the equation of time, which is the deviation between the sun's actual motion and an idealized clock. In November this adds up to 16 more minutes. Combined: as much as 24 minutes. Enough to make wall-clock 13:00 actually 13:24 by the sun. A different hour pillar.

So I built my own. The sun position comes from NASA data. The jeolgi (24 Korean solar points) are validated against KASI tables. Time zones from IANA, historical ones included. Equation of time per Spencer 1971. Day pillar correct to the minute from Lisbon to Helsinki.

Where does my interest in saju come from? It started with my mother.

She has always seen more in people than others do. She works in several fields — among them energy reading, tarot, and Vedic astrology. She does it for herself and for the people around her, and has done so for a long time.

I inherited those abilities from her.

For me, saju is a neighboring tradition. I started reading the classics out of curiosity — I wanted to see how a tradition a continent away describes a person, and how it compares to Vedic astrology.

It reads similarly. Saju sees you through your element and the season; Vedic through the rising sign and the moon's position. The day pillar tells what the lagna tells in Vedic — the rising sign at the moment of birth. Different language, similar contours.

It showed me that both traditions hold something science hasn't yet described, but that works often enough that people have returned to them for centuries. Physics doesn't explain it yet.

What you'll find on ilju.app: a precise calculator and a classical saju interpretation (gyeokguk, yongsin, sipseong, sinsal) with side commentary for Western readers. Free. Polish or English. All it needs from you is your birth date, time, and place.

Plus a ready prompt for ChatGPT, Claude, or Gemini — paste it and you'll get the first interpretation. AI handles the basic aspects and configurations well. It won't replace the depth of a conversation with a human practitioner, but for first orientation it's enough.

A saju chart isn't a verdict. It's a map of patterns and potentials — how you usually make decisions, how you enter relationships. How you choose when you don't know what to choose. You can use it or not. Both paths are good.

Good luck. Stay in touch ;)

Patryk. [email protected]

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