Enter one birth date to find its Japanese Shukuyo birth mansion, old-calendar date, and calculation basis. No birth time, location, or sign-up is required.
Japanese old-calendar 27 mansions · Birth mansion and life themes
All reviews and testimonials come from registered users; some have verified accounts, generated reports, or completed purchases 😊
OpenFate converts a Gregorian birth date to a Japanese old-calendar month and day under a fixed JST convention, then advances through the canonical 27-mansion cycle to find the birth mansion.
A Shukuyo birth-mansion calculation needs one birth date, a defined Japanese old-calendar conversion, and a fixed 27-mansion sequence.
OpenFate exposes those layers so the result can be reproduced before any traditional meaning is added.
Use the recorded Gregorian date. Birth time, birthplace, gender, and account details do not affect this calculator.
The engine uses the JST civil date with defined new-moon, principal-solar-term, and leap-month handling to obtain the Japanese old-calendar month and day.
The old-calendar month supplies a fixed first-day mansion. Moving forward by the day number within the canonical 27-mansion sequence gives the birth mansion.
When results differ, compare the calendar convention, date boundary, time zone, and mansion count. Only after those facts match should traditional interpretation begin.
The calculation does not infer a personality, predict an event, or rank one mansion above another. It also does not use birth time, birthplace, gender, or a hidden 3 a.m. rollover.
Use the Shukuyo reading page to explore one calculated mansion, or the compatibility page to compare two mansions. Both routes reuse the deterministic result instead of asking AI to choose a new one.
Answers about required birth data, the Japanese old calendar, 27 versus 28 mansions, and calculation differences.
No. The calculator only needs the recorded Gregorian birth date. It does not require a time, city, gender, or account.
The engine converts the date under a fixed JST Japanese old-calendar convention, finds the old-calendar month and day, then advances from that month’s fixed first-day mansion through the 27-mansion cycle.
This calculator uses the Japanese Shukuyo cycle of 27 mansions. It does not mix in the Chinese 28-mansion system or another lunar-mansion table.
Sites may use different old-calendar conversions, time zones, leap-month rules, date boundaries, or 27-versus-28-mansion tables. Compare the stated method before comparing results.
No. A deterministic calendar engine calculates the old-calendar date and mansion. AI is not part of the result selection.
It uses the recorded Gregorian date under a JST civil-midnight convention. It does not silently move the date at 3 a.m. or infer a birthplace timezone.
The calculator shows the date conversion, birth mansion, and calculation basis. The separate Shukuyo reading page adds a deeper one-person interpretation without changing the calculated mansion.
Yes. The Shukuyo compatibility page calculates both birth mansions under the same policy, then shows the relationship family, both directional roles, and any applicable distance band.
