Definitions

1. adjective

relating to or characterized by a calendar, especially one of a particular type or system

“The calendrical systems used in different cultures often have unique characteristics.”

2. adverb

in relation to a calendar, especially one of a particular type or system

“The festival will take place calendrically on the full moon.”

3. noun

a calendar or a system of calendars

“The development of calendrical systems has been a significant focus of historical study.”