If I implanted you with memories of the future, convincing you that it was the year 2030, and in those memories, giving you a time machine to travel back to 2009, and then woke you up with your memories intact, you would think you had travelled in time, even though you had never left the year 2009.
But what would be the difference? If you actually were in the year 2030 and actually did travel back in 2009, you'd be in the same situation: walking around the year 2009 with memories of the next 21 years.
That would also be a great way to get you to do something. I could convince you to assassinate someone because I gave you the memories that your target would go on to do something really awful.
In a way, this is time travel. Even though it really isn't.