At least here in brazil, where punctuality is generally disregarded, classes start on time (at most 5min tolerance) and people arriving 45min late to a schedule

At least here in brazil, where punctuality is generally disregarded, classes start on time (at most 5min tolerance) and people arriving 45min late to a scheduled appointment shouldn't expect to find anything waiting for them. At the same time, social events in general happen always an hour or so later than announced, except for small gatherings and things with a fixed timeframe such as going to the movies. As a naturally punctual person I've arrived in birthday parties thinking I was being fashionably late and found everybody still pre-shower and the place a mess.