at all hours
US /æt ɔl ˈaʊərz/
UK /æt ɔl ˈaʊərz/

1.
a qualquer hora, dia e noite
at any time, especially at unusual or inconvenient times, day and night
:
•
He calls me at all hours, even in the middle of the night.
Ele me liga a qualquer hora, mesmo no meio da noite.
•
The store is open at all hours during the holiday season.
A loja fica aberta a qualquer hora durante a temporada de férias.