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

1.
op alle uren, dag en nacht
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.
Hij belt me op alle uren, zelfs midden in de nacht.
•
The store is open at all hours during the holiday season.
De winkel is op alle uren open tijdens de feestdagen.