Day

の日

(observance lasting for a day)

デー

dē

(observance lasting for a day)

一日

ichinichi

(period of 24 hours)

日

hi

(period of 24 hours)

日

hi

(period from midnight to the following midnight)

日

hi

(part of a day period which one spends at one's job, school, etc.)

昼

hiru

(period between sunrise and sunset)

昼間

hiruma

(part of a day period which one spends at one's job, school, etc.)