From the Federal Circuit web site:
Due to the anticipated disruption of access to the Court by its facilities falling inside the security perimeter during the Papal visit, by order of the Court, the Clerk’s Office of United States Court of Appeals for the Federal Circuit will close on Tuesday, September 22, 2015, at 3:30 p.m., ET. The Court will remain closed Wednesday, September 23, 2015, and will reopen on Thursday, September 24, 2015, at 8:30 a.m. For purposes of computing time, and for motions to enlarge time under Fed. R. App. Proc. 26 and Fed. Cir. R. 26, Wednesday, September 23, 2015, will be considered a “legal holiday.”