Could you provide additional explanation for this: When the time expressed uses hour numbers above 12 (in the "24-hour clock" -> 13h, 14h...), you use instead quinze, trente, quarante-cinq, probably for pronunciation (and elegance) .
I am having a hard time understanding these translations in the examples of a 24 hour clock.
Il est seize heures quinze.It is quarter past four PM.Il est quinze heures trente.It is three-thirty PM.Il est dix-neuf heures quarante-cinq.It's quarter to eight PM.