So I think it's pretty simple issue I'm looking at. My utility to deal with ZIP files is: RPF ZipControl, v2.6.4, a pretty nifty GUI, but relies on the zip/unzip EXEs themselves for the crunching work.
For a long time I was using unzip 5.52, but as I'm attempting to clean-up my machine in the continuing drive towards the RPM/YUM assimilation (LOL, yeah, I imagine meeting Borg would be just as fun) I discovered that installing the currently available unzip package gets me unzip 6.00, with a side-effect though!!!
So the result of unizp 5.52 gives me good, actual DATES in the ZIP archive, the 6.00 on the other hand gives me all 2020 dates, ugh???
I suspect something has chagned, is it in the unzip itself? Is there a CLI option I need to account for? Any ideas?