DENVER -- Researchers have confirmed what wives have long suspected: Men slack off more than women.

Each day American men on average have an extra 38 minutes of leisure time compared to women in the United States, according to a study of Western countries by the Organization for Economic Co-Operation and Development.

Over the year that adds up to 13,870 minutes -- or almost 10 days -- of extra time off for American men compared to the chores that women toil through on a given day.

But Italian men are the world's slacker kings. Italian men have an average of almost 80 minutes more leisure each day than Italian women do. That's double the U.S. level, according to the OECD.

What is the country where men and women (nearly) share the same load? Norway, where men on average have "only" 4 minutes of leisure daily more than women.

Here's the global results for the average extra daily leisure that men have compared to women:

Norway 4 minutes

New Zealand 16 minutes

Japan 20 minutes

Sweden 21 minutes

Germany 22 minutes

Canada 25 minutes

Finland 28 minutes

Australia 29 minutes

Turkey 32 minutes

United Kingdom 33 minutes

France 34 minutes

Korea 34 minutes

United States 38 minutes

Belgium 50 minutes

Spain 52 minutes

Mexico 52 minutes

Poland 56 minutes

Italy 79 minutes

Source: Organization for Economic Co-Operation and Development