期日

(1)the point in time at which something must be completed

(2)期限内にの何かを完成させなければならない時点

(3)the particular day, month, or year (usually according to the Gregorian calendar) that an event occurred; "he tried to memorizes all the dates for his history class"

(4)ある出来事が起こった特定の日、月、または年（通常、グレゴリオ暦による）

(1)