| > But whose 24 hour clock? The one from your current timezone, obviously. And if you omit your timezone, you obviously mean your current timezone; the one you're residing in. If you're in Paris and you tell your kid dinner is at 6 PM then you mean local time. If your kid then comes home at 7 PM and says oh I thought you meant UK time then that's obviously your kid being a smartass. Even if you are both from UK. Why? Because it isn't practical to stick to a timezone you're not residing in. Wether we're talking about 6 PM or 18 and 7 PM or 19 makes zero difference to your argument. 24H notation is just simpler and more practical. You don't have to resort to keyboard, it even takes up less space, and most importantly the context is less relevant ie. if AM/PM is omitted you still know what's up. The only reason people stick to 24H notation, or imperial system for that matter, is "because we've always done it like this" ie. an argumentum ad antiquitatem. Not because it is better. Backwards compatibility comes with a price. You should always question whether the price is worth it. I can think of one problem with the 24H system: analogue clocks like watches and churches. They use 12 hours. But when you watch that, that's communication to you as a human instead of human to human. And you know whether it is morning or evening, day or night, unless you're in a truly strange mental state. |