all hours
成語所屬單字hour
all hours — 慣用語
1. Any time, especially a time that is very late or not normal.
1.慣用語
釋義
任何時間（尤指深夜或不適當的時間）
Any time, especially a time that is very late or not normal.
例句
Mia's band practices at all hours, disturbing the neighbors.
Why do you let your son stay out till all hours?