True only if your hours are counted. I don't know the ratio but I think a significant part of engineers are day-based wage, so you are just expected to work til

True only if your hours are counted. I don't know the ratio but I think a significant part of engineers are day-based wage, so you are just expected to work till 18h00/19h00, more if needed. Btw, legal minimum vacation time is 20 days but 25/30 days is common and some can have huge vacation time (but lower wage).