noun
study of the calendar; calendar-making tradition
Historical term referring to the traditional Japanese study and practice of calendar-making, often associated with the Onmyōdō tradition. Compare with 暦学 (れきがく), which is a more general term for calendar studies.
See also: 暦学
暦道は、平安時代に陰陽道の一部として発展した。
Rekidō developed as part of Onmyōdō during the Heian period.