We've also gained mandatory arbitration and at-will employment; let's not get ahead of ourselves. Not to mention most knowledge-workers work more than 40 hours a week with no hope of overtime. Of course, at least in America, we won't see 'white collar' jobs shift from the 5 day work week, but they have shackles of a different kind.

Working hours have gotten longer in the US with the decreased power of unions.

We also have shifted from the 6 or 7 day workweek to 5.

The number of emails I get from Americans (across multiple jobs) on a Saturday and Sunday afternoon would argue differently.

Obviously, this is anecdotal but no company in the world is going to release any figures saying that their employees work longer hours than they are employed for.

That's why workers need to keep fighting for things they have achieved. Otherwise employers will take them back.