I just heard Winnie-the-Pooh claim that his clock (which doesn't seem to function at all) is "sixteen o'clock".
I assume that this was meant as a joke by the silly old bear.
However, they do have a 24-hour-format in England, where the series is set, so it made me wonder if they do say things like that there.
What I'm asking is if they continue after "12 o'clock" and go "13 o'clock" and so on or if they say "1 PM" or whatever 13:00 is in the perpetually confusing 12-hour clock format?