[Viliam1234]

> If you want to work only 34 hours, expect to proportionately get only 85% of your salary.

It is not linear, unfortunately. For working only 34 hours, expect to get maybe 50% of your 40-hours market salary, if you are lucky. Because by standing out from the crowd, you are sending a signal that you are "somehow weird", and that is not a good signal to send.

As long as there are other people willing to work 40 hours a day, most companies won't bother making an exception for someone. Why hire a "weird" person, if there are non-weird alternatives available?