When creating a new title news item from the Game Manager dashboard, the timestamp is auto populated with local time instead of UTC (as it says in parenthesis). If you delete the auto populated text and select today's date, the UTC time is then populated correctly.
Small issue but just noticed it when testing just now. I mark title news as unread in the client if it was created after the user's most recent last login time. But the feature wasn't working correctly due to game news being sent with a local time instead of UTC.