I use am/pm because that's how I was taught to tell time growing up, and in my corner of the world (northeast US) nearly everyone uses it. "2 pm" is immediately meaningful to me, but to parse "14:00" I have to subtract 12 in my head. Even when the am/pm is left off, it's usually clear from context.
I'm not arguing for the inherent superiority of am/pm notation, but I do get frustrated with people who use 24-hour time because "it's more logical", without seeming to realize that it's more difficult for the majority of people to understand.
I'm not arguing for the inherent superiority of am/pm notation, but I do get frustrated with people who use 24-hour time because "it's more logical", without seeming to realize that it's more difficult for the majority of people to understand.