昼夜を分かたず

ちゅうやをわかたず

by day and night, day and night, round the clock

昼夜を問わず

ちゅうやをとわず

day and night; around the clock

夜昼

よるひる

day and night

昼夜

ちゅうや

day and night

一昼夜

いっちゅうや

whole day and night, 24 hours

昼夜帯

ちゅうやおび

women's obi with a different colour on each side (originally black and white)

昼も夜も

ひるもよるも

day and night

昼夜兼行

ちゅうやけんこう

around-the-clock, (working) day and night

昼夜逆転

ちゅうやぎゃくてん

one's days and nights being reversed

夜を明かす

よをあかす

to intentionally pass the night without sleeping until morning

昼

ひる

noon, midday

舎

しゃ

hut, house

昼鳶

ひるとんび

sneak thief

小昼

こひる こびる

just before noon

春昼

しゅんちゅう

spring day (which seems long and quiet)

昼席

ひるせき

matinee (performance)

昼頃

ひるごろ ひるころ

about noon

昼飯

ひるめし ちゅうはん ひるはん

lunch, midday meal

昼食

ちゅうしょく ちゅうじき ひるげ

lunch, midday meal