No problem, don't worry. 
I know you haven't been through NS....
Not sure, I went Through Sec school back in the early 90's and
if I have learnt it, it went through one ear and went out through
the other ear .. Only in NS is the 24 hours time format drilled
into my head during BMT, because everything is said in 24 hours
format.
Yeah, the Army uses this, but I don't, because I'm an AFV driver
