oversleep / one who sleeps late or oversleeps

夜中: midnight

真夜中: midnight

nighttime, the night, the period of time during the night

a place name / a surname

midnight

a place name, such as that of Toyonaka City in Osaka Prefecture

late at night, the middle of the night / midnight

time / an event, case, occasion, moment; a specific period in time / a time of something / a season / a tense / (literary) the time during which a narrative takes place

三時: three o'clock