How do you say 5 50 pm in French?

There are a couple of ways to say 5:50 pm in French, depending on formality:

Formal:

* Dix-sept heures cinquante: This is the most formal way, using the 24-hour clock.

* Cinq heures cinquante de l'après-midi: This is also formal, using the 12-hour clock and specifying "après-midi" (afternoon).

Informal:

* Cinq heures cinquante: This is the most common way to say it in everyday conversation.

Note: In French, "heures" is always plural when referring to time.