Hi. in my company there are different work times depending on the weel day, i.e. Monday to Thursday from 8 to 18 and Friday from 7:30 to 14.

This also implies that the expected time is not 8 hours at day, is 8:30 from Monday to Thurdsay and 6 hours on friday, total 40 per week but is not 8 per day.

Not sure if there are more companies with this kind of schedule, for me seems interesting