The document date and/or time (Ctrl+D) is incorrect. Using Vista x64. Upgraded to 6.2.287 but no help. Date and/or Time is not the date/time the PDF file was created (nor the date last modified or date created of the source file). Can send sample images if need.
I did some tests and it seems that the PDF is "stamped" with the correct date/time, only that the time is shown in GMT format. We'll see if it's possible to show it different depending on the Time Zone selected in Windows. But again, the time is correct just that is GMT.