A traditional lens, clearly labeled
Calendar facts, customary day selection, and modern language — kept in separate layers.
A day associated with abundance and bringing things toward fullness.
Good for
Modern labels mapped from the day characterHold off
A cultural planning prompt, not a safety warningThe 12-character cycle
Use arrow keys or select a date.
Look closer
The traditional solar month changes at a sectional term, not on the first day of the lunar or Gregorian month.
The day whose branch matches the month branch is Begin. Count forward through the 12 Earthly Branches.
The resulting character selects a product narrative. Raw source activities remain visible in a separate evidence layer.
This demo uses a pinned open-source implementation. A production calendar should validate representative dates against an authoritative astronomical calendar provider.
Build with confidence
Dates, lunar conversion, solar terms, and Stem-Branch values.
Deterministic cultural conventions such as the 12 Day Officers.
Readable activity labels with Keep, Modernize, Merge, or Extension provenance.
Localized copy, accessible interaction, and explicit limitations.