Here is a partial list of those affected:
All banks will be closed. All federal and provincial government offices will also be closed.
Boroughs that have garbage and recycling collection scheduled for Mondays will continue their pick-up as normal.
Citizens can visit borough websites or contact ville.montreal.qc.ca or by phone at 514 872-0311 for information about services offered.
Most supermarkets will be open, and all SAQ liquor stores will be open during regular hours unless the outlet is in a shopping mall operating on holiday working hours.
Montreal arenas, swimming pools, sports centres and libraries will operate according to borough schedules.
Canada Post offices are closed on Monday, and there will be no regular collection or delivery of mail.
Even though it is a holiday, the city says drivers will still have to pay to park on city streets.
The Montreal Metro's Yellow line will be closed Thanksgiving Monday, and three shuttle-bus lines will then be put into service.
The Metropolitan Transportation Agency (AMT) says that the Montreal/Vaudreuil-Hudson and the Montreal/Deux Montagnes commuter trains will have service interruptions because of repair work on the tracks. For more information, visit amt.qc.ca.
The Biodôme will be open from 9 a.m. to 5 p.m.
The Botanical Garden and Insectarium will be open from 9 a.m. to 9 p.m.
The Atwater, Jean-Talon and Maisonneuve markets will be open from 8 a.m. to 5 p.m.