Many countries including the US use 12 hour time for everything, so it’s easier for a lot of people to not have to constantly translate. So it makes sense to be the default in those countries. And yes, I think 24hr should be standard everywhere, but it’s not. I also think it’s insane not to use SI units, but oh well. (I think we should use decimal time as well, but that’s never going to happen because we’d need to redefine so many units.)
Many countries including the US use 12 hour time for everything, so it’s easier for a lot of people to not have to constantly translate. So it makes sense to be the default in those countries. And yes, I think 24hr should be standard everywhere, but it’s not. I also think it’s insane not to use SI units, but oh well. (I think we should use decimal time as well, but that’s never going to happen because we’d need to redefine so many units.)