According to the festival's website, Logan will be 135 minutes in length, or 2 hours and 15 minutes, which is just about the same as The Wolverine (2 hrs 16 min).
Update: The synopsis is incorrect. Here is the correct version:
In the near future, a weary¬†Logan cares for an ailing Professor X in a hide out on the Mexican border. But Logan's attempts to hide from the world and his legacy are up-ended when a young mutant arrives, being pursued by dark forces.
"Logan," has a March 3, 2017 release directed by James Mangold starring¬†Hugh Jackman, Patrick Stewart, Elizabeth Rodriguez, Stephen Merchant, Doris Morgado, ¬†Eriq La Salle and¬†Dafne Keen as X-23.¬†