I simply wanted to note that post offices were open until 6:00 p.m. a few years ago, in Montreal and probably across the country. We have never really understood why Canada Post decided to shorten the business hours of the postal outlets. We agree with you that they should be open when customers have the time to go there. It makes no sense to close them that 4:00 p.m.
On September 26th, 2016. See this statement in context.