The person I interviewed in that link who has been doing this for 15 years has seen many different arrangements depending on the company's needs, HR rules, and

The person I interviewed in that link who has been doing this for 15 years has seen many different arrangements depending on the company's needs, HR rules, and the like: 1. X hours per week, spread out however. 2. Specific day off per week (so I guess you could do 1.5 days off?) 3. Lots of extra guaranteed unpaid leave/vacation that he could use as he wanted. I've done 35 hours a week, and I just have longer and shorter days, based on personal needs, when I have meetings, the weather, etc. :)