I've been using twelve-hour time for the longest time, but you don't see it applied in life much. What's more, most other countries follow twenty-four hour time, and that carries over to their products. So, I'm working on following it more often.
Thanks, pleased to hear you find it interesting. I found this poll question really interesting as well . there is. In the Netherlands we'll usually just say the hour of the time it is without adding AM/Pm when meeting someone during the day.
But when I'm meeting with people at a certain time we do use AM/Pm version of that particular time of day.