It's about time

US /ɪts əˈbaʊt taɪm/
UK /ɪts əˈbaʊt taɪm/
"It's about time" picture
1.

il est grand temps, il était temps

used to say that something should have happened sooner or that it is already late

:
It's about time you cleaned your room!
Il est grand temps que tu nettoies ta chambre !
After waiting for an hour, it's about time the bus arrived.
Après avoir attendu une heure, il était temps que le bus arrive.