We have formatted output that displays a Date Generated in the footer and noticed that on some pages that date is one day in the future and not the current date. We were able to duplicate the issue by running a report on a laptop that had Chrome open overnight. It happens on different pages and not for every user.
I learned on an Adobe forum that the problem may related to the code we are using to display the Date Generated.
This is the code in our master pages that displays in the footers:
// Current Date in short-style date format.
$.rawValue = num2date(date(), DateFmt(1))
Have you ever seen a problem like this on your formatted output? How are you coding your date and timestamps?