As of October 9, 2023, it is unclear what specific stores or businesses are open in Montreal today. However, some general information about holiday schedules and closures is available. According to a Montreal Gazette article from August 30, 2023, government offices and most stores were closed on Labour Day, but museums and markets stayed open. The same article also notes that all Société québécoise du cannabis stores and its customer relations centre were closed on Labour Day, and regular store hours at 24 branches were affected by a strike. The City of Montreal Accès Montréal offices and permit counters were also closed on Labour Day.

It is important to note that holiday schedules and closures can vary depending on the specific business or organization. It is recommended to check the website or call ahead to confirm hours of operation before visiting a specific location.