Earlier quoted context omitted.
There is no right to that. Things that make it impossible should be looked on with suspicion, but the right does not exist. If you were willing to live like 1930 you could have plenty of free time, but 1930 means electric was a luxury most people didn't have.
If there is no right for individuals to have a productive life with plenty of free time per day than a huge number of HN comments on topics such as politics, housing, social welfare systems, healthcare, transportation, etc... are obviated. Which doesn't seem like an appealing proposition to accept.
Rights to housing, welfare, and healthcare are generally handled independently. I'm not sure if there is a "right to transportation". Most rights originate from a basic "right to a happy life" ideal, but are split up and spelt out in particular sub-rights that are easier to enforce in court.
Article 8 of the ECHR and similar human rights conventions seem to come close, but that's mostly used against governments and laws.
I don't think it's a bad idea to introduce such a right, but it needs to be carefully worded or it will cause a lot of trouble.