Find my Sukuyo mansion: birth-date inputs and checks
Find my Sukuyo mansion by entering a documented Gregorian birth date. Keep the lunar month, day, leap flag, method version, and 27-mansion result.
Overview
Keep the input date, converted lunar date and returned mansion together so the result can be checked later.
At a glance
- Input
- Gregorian birth date in the product
- Supported range
- 1900–2099
- Keep with the result
- Calendar convention and lunar date
Prepare the birthday
Use a documented date if available. Check whether the source record is Gregorian or lunar before typing the numbers.
Do not enter a lunar birthday in a Gregorian field or invent a missing year.
Read the conversion result
The product first converts the date using its Japanese calendar convention. The lunar month and day supply the lookup inputs.
A screenshot containing only a mansion name is not enough to diagnose a disagreement between tools.
Read the returned mansion
Use the full name and any known script variants to find its Wiki entry. The 27-mansion directory preserves a single owner for each identifier.
Do not replace the result with a mansion selected from a personality quiz.
What if the birthday is uncertain?
Run only the documented candidate dates and preserve the uncertainty. If they return different mansions, show both as conditional results.
A description that sounds attractive cannot settle an uncertain civil date.
What comes next?
Read the natal description separately from the modern exercises. For compatibility, repeat the input checks for the other person with their consent.
A real calculation belongs in the linked tool; this page explains the procedure rather than providing a second unverified calculator.
Use a result receipt
Copy the fields in this order: Gregorian date → lunar year/month/day → leap status → mansion → policy version. A second calculator can then be compared field by field.
If only the final mansion differs, do not change the birthday; investigate the roster, month-start entry and counting convention.
Sources and editorial basis
- 宿曜經 · T1299 卷上卷上「大唐月建圖」: month/day table as historical comparison, not the product’s modern lookup.Historical text for mansion names and calendar tables. Its table is not identical to OpenFate’s modern 27-mansion lookup; it does not establish predictive validity.
- OpenFate Sukuyo calculator and calculation conventionEditorial code check 2026-09-10, policy 1.0.0: birth-mansion; policy.ts, constants.ts, engine.ts and traditional-cycles.ts. Product settings are not an independent historical authority; practical examples are OpenFate editorial applications.Product-specific input and output reference. Editorial checks also inspected policy 1.0.0 and the month-start constants on 2026-09-10; those implementation checks are not an independent traditional authority.