Just in case it's not clear: when Swedes talk about 4 weeks of vacation, they also count the weekend that they have off anyway, so 15 days = 3 weeks and 20 days = 4 weeks
yep, same here. Apparently it's typical here in USA, for those who get paid vacation at all (ie not restaurant staff and other low-wage hourly workers), to get 4 weeks after... 20 years of tenure at the same employer!