If the Millennium Falcon went into light-speed, it'll be on the other side of the galaxy by now. ~ Admiral Piett
As far as I know, it takes a couple of days to cross the galaxy at light-speed. It's unlikely so much time has passed.
Is this a classic screw-up by a scriptwriter having no clue how space travel works, should this be considered a major exaggeration or has more time passed than I realized?