This is the kind of minor discrepancy that's actually a pretty good argument FOR legitimacy.
Most forgers would probably iron out such little wrinkles.
Real life is seldom 100% straightforward. Offices have 2 or 3 different people who fill out certificates, and there's a bit of variation in how things are done. Someone rips off a small stack of forms and puts them in one place, or hands them to one person, another small stack of forms goes somewhere else. A piece of paper sits on someone's desk for a day instead of being filled out immediately. When it's filled out, they use yesterday's date stamp, then notice later that they need to change the date.
There are probably a hundred different ways for minor variations to take place. The people who do the work are ordinary people. Sally, who didn't do that well in school but landed a job with the state. Bill, who's going through a divorce and doesn't really care that much about doing a good job right now.
Nobody thinks it will ever be, or even seem, important, to anyone. In 299,000,000 cases out of 300,000,000, they're right.
A piece of paper sits on someone’s desk for a day instead of being filled out immediately.
Why then does the “date accepted” show Obama’s was accepted 3 days before the Nordykes?