If you are not using Western European languages, then you are likely to encounter the problem from the illustrator. I tried it for a long time to find the whole question in the “System Preferences> Language & Region> Time Format.”
As long as you change the time format to “24 hours”, can not be affixed to the problem will be solved. I think it’s still about Glyphs development.
My picture is a traditional Chinese system, I tried a lot of computers are feasible.