French phrase
À quelle heure reviendra ~ ?
Meaning
What time will ___ be back?
When to use it
Asks when someone or something will return. Polite and suitable for checking a third party's schedule.
Example dialogue
À quelle heure reviendra le directeur ?
What time will the director be back?
Il reviendra vers 16 heures.
He will be back around 4 p.m.