Year

oge echere oge maka mgbawa ụwa gburugburu anyanwụ wee hụ na ebe a kapịrị ọnụ (nkezi ụbọchị 365.24); ntọala emesịa gbanwee iji kọwaa ma ọ bụ mezie kalenda dị iche iche

Otu afọ ma ọ bụ annus bụ oge orbital nke aru mbara ụwa, dịka ọmụmaatụ, ụwa, na-agagharị na orbit ya na gburugburu anyanwụ. N'ihi ntugharị axial nke ụwa, usoro nke otu afọ na-ahụ na-agafe oge, akara mgbanwe ihu igwe, awa nke ìhè ehihie, na, n'ihi ya, ahịhịa na ala ọmụmụ. Na mpaghara ihu igwe na nke subpolar gburugburu ụwa, a na-amata oge anọ: mmiri, ọkọchị, ụbịa na oyi. N'ebe okpomọkụ na mpaghara ebe okpomọkụ, ọtụtụ mpaghara mpaghara anaghị ewepụta oge akọwapụtara; ma n'oge okpomọkụ nke oge, a na-amata ma na-agbaso oge mmiri mmiri na ọkọchị kwa afọ.