As slow as traffic can be in Montreal, it's worse in Vancouver, Toronto and Ottawa according to the GPS mapping company TomTom.
That company's fifth annual traffic index shows Montreal's traffic is the fourth-slowest in Canada, with the average commuter losing 79 hours a year while stuck in traffic in 2014.
That's 21 minutes a day extra for a twice-a-day half-hour commute.
The worst time to be driving in most cities is on Thursday evenings, except in Edmonton, Calgary and Quebec City, where Wednesday and Friday evenings are more likely to produce the longest traffic jams.
The fastest-flowing traffic in a big city in Canada is in Calgary.
Amsterdam-based TomTom blames high levels of congestion on the traditional work week in which many people have no choice but to be on the road at the same time.
It says more flexible schedules would help people save travel time while reducing rush hour congestion.
With a file from The Canadian Press
