On average, workers in OECD member countries work 1,739 hours a year, or about 34.8 hours per week, based on a 50-week work calendar. Germans? They must scoff at that number. While at the same time contributing to one of the world's wealthier nations (Germany's GDP per capita was among the top 20 on earth last year, according to the International Monetary Fund), Germans aren't often on the job. By the OECD's figures, Germans work just 27.8 hours per week, based on a 50-week work calendar, one of the lowest tallies of all the organization's 34 member countries.