Levi's Restaurant and Lounge, 323 Washington St., won approval from the Boston Licensing Board to extend its Friday and Saturday closing time from 1 a.m. until 2 a.m.
The Georges, who own the restaurant, said they keep getting requests from customers to stay open a little later on weekends.
Both the mayor's office and police District C-11 opposed the extra hour.
At a Wednesday hearing before the licensing board, Mayor's liaison Tim McKay said the restaurant had failed to meet with all the neighborhood groups the mayor's office thinks it should and that C-11 "has had some issues in the past" with the restaurant.
However, after the owners said the restaurant sits in the Four Corners area and they have no idea what those other groups are, McKay said he could not specify the groups - he said he was filling in for the normal Dorchester representative.
Nobody from C-11 attended the session and McKay could also not specify what the police's problems with Levi's were.
Board member Suzanne Ianella peered through the restaurant's licensing-board file and said it has been cited by police just once since its 2010 opening - for being open 20 minutes after its stated closing time.
Board member Milton Wright expressed frustration that the mayor's office wanted the board to reject the request with absolutely no details of what the police concerns are.