9:19

8:18, 8:19, 9:18, 9:19 all work

Yeah but those aren't symmetrical dummy

I’m not always about true aesthetics.

Yeah, pretty much anything starting and ending with 8 or 9.

I don't think 9:29 will work exactly like 9:19 as 2 is fractionally wider than 1

Perhaps. Depends on the phone I guess. Some devices (like my phone) don’t move digits to make room for other ones. The room already exists.