Method
Four Pillars, calculated privately and interpreted with boundaries.
KAHEI reads the Four Pillars calendar — known in Japan as Shichū Suimei 四柱推命 — through classical calculation structure and plain English. Traditional terms are introduced when they help explain the method, then translated into the work they do in the reading.
The split, demonstrated
8 visible positions: 4 stems + 4 branches.
Calculated — sans-serif, counted, always captioned with its basis.
Read these as prompts, not verdicts.
Interpreted — serif, reflective, never presented as certainty.
01Calculated basis
The chart comes from the calendar, not from a model.
KAHEI starts from Four Pillars calendar structure: year, month, day, and hour pillars derived from the submitted Gregorian date and time.
02Interpretive boundary
Facts and reading language keep different jobs.
Calculated facts and fixed mappings establish the chart. Reflective language then asks what that structure may help you notice. KAHEI shows the basis for countable facts without presenting interpretation as certainty.
03Local-time model
KAHEI uses the local clock time you enter.
This version does not infer birthplace or timezone, convert daylight saving time, correct longitude, or apply true solar time. The submitted local civil time remains the calculation anchor.
04Time model
Exact local civil time is the input model.
KAHEI expects the local clock time you provide for the birth moment. It does not infer a place from that time, ask for birthplace, or convert the time to another timezone.
An exact local birth time produces the most specific reading. If you do not know it, KAHEI does not guess and does not fail silently: it applies its locked V1 Zi-hour anchor of 23:00, labels the result as provisional, and continues.
The anchor is an interpretive convention, never a claim about when you were born. A verified time can change the hour pillar, the Day Master near a day boundary, the visible balance, the patterns, and the specimen. Free Reading and Chart Tools apply the same rule.
What KAHEI does not claim
The calculation follows stated rules. The interpretation remains something to test against lived experience.
KAHEI does not treat a reading as medical, legal, financial, emergency, psychological, or professional advice.
KAHEI does not promise fixed outcomes, personalized certainty, or certain future events.