The owner of the McDonald's at Harvard and Commonwealth avenues is seeking permission to stay open around the clock.
The Boston Licensing Board considers its request to extend its hours, which now run 5 a.m. to 2 a.m., at a hearing on Wednesday.
A little over a year ago, the board agreed to let the burger place change its opening hour from 7 a.m. to 5 a.m., after owner Bob King agreed to take steps to keep his franchise from becoming a hangout for methadone patients.
At the time, Allston Civic Association President Paul Berkeley opposed that change, saying his members were "fearful we're just going to become a 24-hour community."
Also Wednesday, King seeks permission to extend the hours of his franchise at 360 Western Ave., currently 6 a.m. to 1 a.m. to 5 a.m. to 2 a.m.
The board's hearings begin at 10 a.m. in its fifth-floor hearing room in City Hall.