We come from the MA/CT border and if we leave at 7 pm we totally clear everything busy and can hit Disney by 4:30 pm straight thru. So, the dilemma begins - We think we can stop overnight in Savannah, but when we are hitting there at 11:30 am, guess we'll just keep going -- for the lousiest 5 hrs. ever! So, putting you maybe 3 hours closer than us? just guessing - by our theory we could leave at 10 pm. But you're much better off staying over 1 night - so don't do that. So, the question becomes, how early must you leave to clear the traffic ---- and you must clear the traffic. I think you probably need a solid 5 hours to clear. So, I think I'd knock that 3 am guess to an earlier 1:30 am. That would probably get you into Savannah by 5:30 which is a great time. The Best Western there also has a Denny's attached which will give you a free breakfast, which you can then turn in for supper (24 hr. breakfast) -- then, may I suggest what we do, when we have stayed there is leave very early (I'm talking 2-3 am here----remember, you got there early enough to turn in around 7:30 or so), that way you can get into Orlando around 7:30 before it gets crazy in Jacksonville and then Orlando -- although that will already be getting crazy! Good luck -- we are trying the auto train for our first time this time.