twelve o'clock is 'douze heures' or 'midi' in daytime (midi means noon); It is 'minuit' or 'zéro heure' at night.
The number 12 is douze in French. That's where English got the word dozen.
3 assuming they are both the same-am or pm
Twelve thirty in the afternoon would be most correct. You cannot say twelve thirty o'clock. You only say o clock when you don't have any minutes over.
2 pm in Montreal,PQ = 7 pm. in London, England
4:05 pm is "quatre heures cinq du matin" in French.
11 oclock everyday! (PM)
Las tres y cinco (de la madrugada/de la tarde) (am/pm) 3:05
3pm
11 oclock everyday! (PM)
It's the same as a small block chevy- 6 pm- 12 pm 6 : oclock on the cam shaft - 12: oclock on the crankshaft
In French, you say "huit heures du soir" for 8 o'clock PM. Alternatively, you can also say "20 heures" if using the 24-hour format.
In French, you would say "cinq heures cinquante du soir" to express 5:50 PM.