Theban year

== English == === Noun === Theban year (plural Theban years) The ancient Egyptian year of 365 days and six hours. 1774-1776, Jacob Bryant, A New System or Analysis of Ancient Mythology They had another year in Upper Egypt, which was heliacal, and styled the Theban. This consisted of three hundred sixty-five days, and six hours. === References === “Theban”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.