[mimotomo2009]

Mmmhh... I don't think the OECD data is not working comparing countries:

"The data are published with the following health warning: The data are intended for comparisons of trends over time; they are unsuitable for comparisons of the level of average annual hours of work for a given year, because of differences in their sources and method of calculation."

Yes, in Germany are many part-time workers but overall mostly they are not working 6 hours the day . Normal is - afaik - 8 hours per day on approx. 220 days in a year.