Are US workers spending too much time on the job?

Far be it for me to recommend US workers emulate the French who work 30 hours a week and have annual 17 week vacations but perhaps we are working too hard. The following two graphs from a recent New York Times article put things into perspective for me.

Why are we one of only eight countries that don't offer paid maternity leave? Being in the same club as Suriname and Liberia doesn't speak well for this country.

Recent NY Times article

And our work week hasn't dropped much along with the prosperity brought by the second half of the 20th century. Even the Japanese are working less than we are.