A press release from Amtrak; July 25, 2019:
WASHINGTON – Amtrak today announced the launch of Acela Nonstop, a new offering with direct service between Washington Union Station (WAS) and New York Penn Station (NYP), beginning Monday, Sept. 23, with tickets now available. The initial weekday only schedule includes one southbound (NYP-WAS) and one northbound train (WAS-NYP) per day with an approximate trip time of two hours and 35 minutes. The southbound train will depart NYP at 6:35 a.m. and is scheduled to arrive at WAS around 9:10 a.m. The northbound train will depart WAS at 4:30 p.m., and arrive at NYP around 7:05 p.m.