We standardized an alphabet among all countries for clear communication.

Here is an example of it going wrong.

The conversion is pretty much the only hurdle I ever hear about, but that’s easy enough. How many songs/films talk about “if I could rewind the last 12+12 hours”…it’s just a matter of making it fit in context people can understand when they know a day is 24 but are used to 12.

ISO and while we’re at it, the NATO phonetic alphabet for English speakers. “A as in apple B as in boy” means fuck all when you’re grasping for any word that starts with that letter, and if English isn’t your first language fuckin forget about it.

Metric yes please. Also for fucks sake use the 24 hour clock. Some of us learned it from the military but it’s just earth time and way easier than adding letters to a number