wee small hours
noun[plural]
uk/ˌwiː ˌsmɔːl ˈaʊəz/us/ˌwiː ˌsmɑːl ˈaʊrz/(alsosmall hours,early hours);(USalsowee hours)the earlyhoursof themorning, between twelve o'clock atnightand thetimewhen thesunrises:
凌晨There's nothingworsethan beingwideawakein theweesmallhours.凌晨了还醒着睡不着,没有什么比这更糟糕。
Days & times of day
- afternoon
 - afternoons
 - am
 - arvo
 - at the crack of dawnidiom
 - happy hour
 - high noon
 - hour
 - in broad daylightidiom
 - in the dead of night/winteridiom
 - night
 - nocturnal
 - nocturnally
 - noon
 - noontime
 - o'clock
 - the witching hour
 - twilit
 - workday
 - working day