good day, good afternoon: a Japanese greeting used in the daytime

all day

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

(obsolete) one day, 24 hours / (obsolete) the daytime, the period from dawn until dusk

(rare, obsolete) (all senses appear to be identical as for hitohi above)

(literary) one day, 24 hours / (literary) the daytime, the period from dawn until dusk / (literary) (figuratively) a short period of time

eleventh day of the month

as early as possible

Have a nice day!

(Buddhism) dead memorial service where many gather to transcribe a sutra in one day