Hi Kenny222,
In order to get the correct time, look to the 1st step where you choose RSS FEED. You will see the “More Options” just to the right of the RSS FEED dropdown menu.
On the More Options screen you will see Fix Time on line 2. I know I set this to “0” and it now gives me the correct time and date for RSS published post feeds. It is probably taking the time and date orginally from WordPress Dashboard Settings-> General where you there input your GMT difference.