That’s not quite it. I had someone else who wanted to change that date before. I tracked down the query that gets this date and found a way to change it. I can’t remember and can’t find any notes I may have made.
You’d look at the HBS for the about page, then see where that comes from (it’s some query that gets . . . something sort of strange) and then update that record with whatever date you want.
Hopefully that’s enough of a hint. That’s my best free answer.