I use 24-hour time personally but to be honest the only thing it's good for is disambiguating 12 midnight from 12 noon.

Tbf that's a huge benefit.

And it's not like 12-hour time has more benefits or fewer downsides than 24-hour time.

	▲	luipugs an hour ago \| parent [-]
		I find that other people get annoyed or at least bring attention to it when I try to use 24-hour time with them, so that's a downside I guess.