This question is related to two others referring to "how to speak out loud 24-hour clock times".
It has been asked how do English-speaking countries that officially use the 24-hour clock system refer to times greater than noon, like for instance 13:00hs (1 PM), when in fact, in the very same UK, such situations happen daily, at Post Offices and Railway Stations.
So, since this situation actually happens daily in the UK, I was wondering how do Brits deal with it? Please bear in mind that there are many different possibilities, situations or cases of speech, that will not necessarily turn out in the same fashion. I will mention a few that come to my mind.
a) When telling someone that his train departs at 13:00.
I would guess: "Your train leaves at one." (it may be obvious that its one p.m.)
b) When quoting or going through a timetable for someone else (for any reason)
I would guess: "That train leaves at, let me see, fourteen, sixteen, twenty and twenty-two hours".
c) When the station speaker goes off announcing departure times.
I would guess: "The train departing at twenty-three twenty-two is delayed and will be departing at twenty-three thirty (hours?)".
I think that there are two basic ways of treating the information or the time-table, as raw data, or in a processed form. When you process it, I think you are in position of adapting and telling it the way you would find best, but when you read it "raw", like in cases where you have to read out many different times, or a full timetable, I guess that there is no point in going through all the burden of "converting" every single time to a 12-hour clock time, even when in UK, which officially uses a 12-hour clock.
I'm tempted to call to a UK Train Station to actually check on this, but maybe you can shed me some light into this matter? I think the same happens in US, with Railway Stations too and other public transportation systems as well?