Concept: annum
Label (en): annum
Description (en): conventional fixed unit of time, derived of the SI system, equal to the mean duration of the tropic year independantly of the geographic location, estimated to 365.2422 fixed days of 86400 seconds, near from the mean year observed on ground
Also known as (en): tropic year, solar year, calendar year, calendar years, year
Label (es): annum
Description (es): unidad de tiempo
Label (ca): annum
Label (it): annum
Instance of: unit of time, SI-accepted non-SI unit
Subclass of: duration