It is all of our duty when working in/with America/ns to use 24h time as often as possible. Same goes for metric.
Americans call it "military time" because the US military uses it. I like to remind people that the entire rest of the world uses it, too, and that 12h time should just be called "American civilian time".
Americans call it "military time" because the US military uses it. I like to remind people that the entire rest of the world uses it, too, and that 12h time should just be called "American civilian time".