small hours
US /smɔl ˈaʊərz/
UK /smɔl ˈaʊərz/

1.
primeras horas de la madrugada, amanecer
the early hours of the morning, between midnight and about 4 a.m.
:
•
We stayed up talking until the small hours.
Nos quedamos hablando hasta las primeras horas de la madrugada.
•
The party went on into the small hours of the morning.
La fiesta continuó hasta las primeras horas de la madrugada.