Yes but did you install 5.0 over 4.8 as that would be the only way it would attempt to use the 4.8 registration data info (or did you uninstall 4.8 before installing 5.0 ?
If you did uninstall 4.8 first then the dates would relate to the clean install of 5.0, but why the weird date format I don't know.
As you can see in my image, the date format is correct for me in the UK (day/month/year) and the time is zeroed out. For US date format month/day/year should be that format (but you didn't indicate a year being displayed) but it is weird that your time (7:53:57) wasn't zeroed out as mine.