Average number of hours people work in United States

The average work week in US is 43 hours. To be precise, it is on average 8.6 hours per day worked.

Working 11-12 hours is definitely not common. Of the few people I know who do it, all do it voluntarily.

People consistently overestimate the number of hours they work, particularly if they work more than 40.

Source: http://www.bls.gov/opub/mlr/2011/06/art3full.pdf