3:55 pm is "trois heures cinquante cinq [de l'après-midi]" /or/ "quatre heures moins cinq" /or/ "quinze heures cinquante cinq".
355 is "trois cent cinquante cinq" in French.
4:05 pm is "quatre heures cinq du matin" in French.
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.
de l'aprés-midi, du soir
3:55 in the AM and 15:55 for PM
We say '15 heures' or 'Trois heures de l'après midi'. But '15 heures' is better.
2:05 pm is "deux heures cinq de l'après-midi" or "quatorze heures cinq" in French.
The number 12 is douze in French. That's where English got the word dozen.
Il était sept heures du matin.
There is no official term that I know of that corresponds directly to AM and PM. I have been taught to specify time, you associate the time of day such as du matin, de l'après-midi and du soir. I certainly hope this helps.
7 pm