BBY/ABY is used to position items along the Star Wars Timeline. BBY refers to Before the Battle of Yavin. ABY refers to After the Battle of Yavin. The Battle of Yavin in Episode IV: A New Hope occured in 0 BBY/ABY.
The saga continues! Desert scavenger Rey and ex-stormtrooper Finn are being pursued by the evil First Order! But can they escape Jakku in an old "hunk of junk" YT-1300 freighter? And what new threats will they find in a galaxy far, far away?