French phrase
Quelles sont les heures d'ouverture ~ ?
Meaning
What are the opening hours of ___?
When to use it
Used to ask when an office or service is open. It suits polite inquiries at public offices and counters.
Example dialogue
Quelles sont les heures d'ouverture du consulat ?
What are the opening hours of the consulate?
Il est ouvert du lundi au vendredi, de 9h à 12h.
It is open Monday through Friday, from 9 a.m. to noon.