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

1.
隨時, 全天候
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.
他隨時給我打電話,甚至在半夜。
•
The store is open at all hours during the holiday season.
節假日期間,商店全天候營業。