Some people poke fun at me because whenever I write time, especially in a log or time sheet, in the twenty-four hour format.
You see, when I track my time at work (always), I use Excel. Excel doesn’t know AM or PM, so if I work from 11:00 to 1:00 in the afternoon, I would have negative ten hours.
So I used 24 hour notation during the transition times, but at some point, I’d have to override a value to normalize it.
So now, I just use the 24 hour clock. Not writing AM or PM saves time too.
So it’s totally logical to use 24 hour notation in writing.
It’s those people who use it orally – they’re just plain weird!