noun
reference calendar; main almanac
A calendar or almanac used as the primary reference, often contrasted with abbreviated or supplementary versions. Cross-referenced with 略本暦 (abridged reference calendar).
See also: 略本暦
江戸時代には、本暦と略本暦が併用されていた。
In the Edo period, the main almanac and the abridged almanac were used together.