DH works for the federal government and is expected to work 40 hours per week. I should say that he is scheduled for that many hours per week, but usually works more than that.
I'm now a contractor for the county and I work as many hours as it takes to get my job done, but my salary was based on a 40 hour work week. Some weeks I work much more and some weeks I work much less. The real perk for me is that most of my data entry and report editing can now be done at home. That accounts for about 40 percent of my weekly hours.