Alot of our digital clocks are 24hr now, including phones and the like but it is very rare that someone would use it in speech, especially general conversation. I have never really heard someone say, for example, "At 1600 hours." or even "It's seventeen twenty-five" though the second would probably be more likely. So if you saying something like "His alarm clock read 16:40" then 24hr is the most common but if your using it in conversation I'd say stick to 12hr as it is alot more common here.
Ria x



It'll most likely all go over my head anyway. 


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