one day

(rare) the first day of the month

(astronomy) solar day

time / hour / the hours or time when something happens

beginning, start / birth / origin

happen / occur

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

the sun / (I Ching) greater yang (⚌) / (tarot) the Sun

all day

the first day of the month (solar or lunar calendar)