Geektastic: I personally use 24hr.

However, I lived in the UK for 38 years before moving here and the only organisational use of 24hr I came across was in the military. In terms of the general public, if someone asked you the time and you said "1423 hours" I suspect you'd be met with more than a few blank looks..!

bazzer:

wasabi2k: I am so excited to see what tomorrow's utterly trivial issue for discussion is...

Also, I use 12 hour 99% of the time, and always conversationally. I only use 24 hours for work-related communication, usually when there is a time zone difference too.

I'm really interested, the people that say they use 24-hour clocks, do they actually say to people "I'll meet you there at eighteen hundred hours"?

Bee: Growing up in a military family, 24hr clock was all I knew for most of my childhood.  I stick with it whenever possible if only to maintain a small link with that military background.  :)  
Teaching the wife and kids is another matter altogether!

MileHighKiwi: I just told my mates I will pick them at half four on Saturday for the Hurricanes game. I hope they aren't waiting for me in the ealry hours...

andrew027: But I can still use 12 hour time verbally in my private life, e.g. I'll tell my wife I'm going out after work and will be home about 7:30, not 19:30 - as it's "after work" she knows it won't be 7:30 a.m.  I don't see any need to be confused by it.

bazzer:
Plus, the added advantage, if it ends up being an all-nighter, when you finally get home you can tell her that you told her you'd be home late. "In fact, it's only 5:30 a.m., I'm early!"

BTR: Not trying to stir things up? We do something different and your complaining about it. You have two choices, get used to it or go home. We also drive on the left, invented pavlova, pineapple lumps and pronounce the word fish so it sounds like fush.


Welcome to New Zealand!

bazzer:
I'm really interested, the people that say they use 24-hour clocks, do they actually say to people "I'll meet you there at eighteen hundred hours"?

joker97: my clock only has 12 numbers?

ScuL:

joker97: my clock only has 12 numbers?

ScuL:

Jase2985: There are 249 Country Codes in the ISO Standard List:
I cant see there being 225 using the 24h clock as their primary.

think you got something a little mixed up there

You can invert it if you like. There are 7 countries in the world that use AM/PM:
United States, Phillippines, New Zealand, Malaysia, India, Canada (Except Quebec), Australia.
Read more: http://www.city-data.com/forum/general-u-s/369587-12-hour-24-hour-clock-system.html#ixzz3dvzhUSNZ
Afaik the world has 232 countries, but that is subject to debate. :)