This really depends on the situation, e.g.: * long commute * kids, depending on their age: shorter work days to be around when they're not at school, or short

This really depends on the situation, e.g.: * long commute * kids, depending on their age: shorter work days to be around when they're not at school, or shorter work week to spend one more day with your baby instead of leaving it at day care * whether you count your working time: 4-day workweek means nobody expects you to be there one day per week, expectations are less clear with a reduced-time 5-day workweek * what you do in your free-time, compare hiking weekends vs going to bars and restaurants Obviously, the best alternative is to be able to choose depending on your personal plans for the week!