Birth month, birth day, chosen year
Reduce the birth month, birth day and chosen year separately to 1–9; add them and reduce the total to 1–9. No master numbers are retained in this tool. The birth year validates the birthday but is not part of the Personal Year formula. February29 remains a valid month/day input even when the chosen year is not leap.
A stated calendar boundary
This page adopts January 1 through December 31 of the chosen year, not a birthday-to-birthday rule. Other schools differ. The nine-year map begins with your chosen year; near9999 it stops at 9999 rather than inventing an unsupported five-digit date.
Nine themes, no forecast guarantee
The sequence1–9 moves through beginning, cooperation, expression, foundations, exploration, care, study, organization and completion. Each theme offers a practice and a caution. It does not predict your circumstances or indicate lucky dates, income or relationship outcomes. The export names the input month/day, chosen year and calendar boundary.