一部始終: the whole story

one day, 24 hours / the daytime, the period from dawn until dusk / (figuratively) a short period of time / one day, someday, an unspecified day / the first day of the month

a birthday

(rare) a birthday

one day

all day, throughout the day, sunrise to sunset, all around the clock

the whole story, all of the details

(idiomatic) a traditional frugal Japanese meal, consisting of a bowl of rice, a bowl of soup or broth, and one side dish

forty-one; 41

sun / daytime, daylight / day