Several MBTA lines will dress up as shuttle buses this Halloween weekend. 

Red Line: On Saturday to Sunday, buses will replace service between JFK/UMass and Quincy Center. Bus service will run between JFK/UMass, North Quincy, Wollaston and Quincy Center in both directions. Regular service will resume at the start of service on Monday

Green Line: Starting Saturday into Sunday, no trains will run between Park Street and Haymarket in either direction. Travelers headed west beyond Haymarket can use the Forest Hills Orange Line at North Station or Haymarket. Commuters heading east should use the Winter Street Concourse at Park Street to Downtown Crossing and get on the Oak Grove-bound Orange Line train.

Blue Line passengers transferring to eastbound Green Line service can transfer to the Oak Grove-bound Orange Line service at State Street. Riders can exit the Orange Line at Haymarket or North Station for Lechmere-bound Green Line service. 

For Blue Line passengers transferring to westbound Green Line service, transfer to Forest Hills-bound Orange Line service at State Street. Exit the Orange Line at Downtown Crossing and use the Winter Street Concourse to Park Street for westbound Green Line connections. Upon exiting the Orange Line at Downtown Crossing, riders can transfer to Alewife-bound Red Line service to Park Street to make westbound Green Line connections. 

Orange Line: Buses will run between Jackson Square and Forest Hills on Sunday from 5 a.m. until closing. Regular service will resume on Nov. 6. Shuttles will run between Jackson Square, Stony Brook, Green Street, and Forest Hills.

Daylight savings: A lapse in service will start at 2 a.m. Sunday when the clocks turn back an hour. That means that service on Saturday, Halloween night, will not be extended an extra hour.