幾日も幾日も: day after day

a birthday

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

regular day off (e.g. closed every Monday)

(Buddhism) complete enlightenment

Synonym of 十人十色 (jūnin toiro, “there's no accounting for taste”)

to each his own; different strokes for different folks; there's no accounting for taste

Alternative form of お日様 (o-hi-sama)

final day

which day; how many days (question)