This one seems to have it, titled "Average annual hours actually worked per worker": http://stats.oecd.org/Index.aspx?DatasetCode=ANHRS http://stats.oecd.org/In

This one seems to have it, titled "Average annual hours actually worked per worker": http://stats.oecd.org/Index.aspx?DatasetCode=ANHRS http://stats.oecd.org/Index.aspx?DatasetCode=ANHRS