There is a Japanese seafood processing company where workers can work whenever they want.
In the seven years since “Papua New Guinea Seafood” in Osaka started this system, sales are up, quality and productivity are up, and employee turnover is down.
Plant hours of operation are from 8:40 to 5:30. (Plant sounds big; it is actually the size of a large commercial kitchen. ) Employees can come in any time during those hours. They currently employ 18 part-time workers.
(I would guess that there probably is a maximum limit on number of hours a given employee can work.)
The owner says that you will be reprimanded if you call to let him know you will be taking a day off. There were only two days in the last seven years where no one showed up all day, and one of those was because there was a typhoon.
The owner is confident that enough workers will show up for enough hours in total because they have a job for a reason: they want to earn money.
He wanted to create a work environment where people enjoy their jobs and want to work, since they will be more productive and efficient.
He is not currently hiring.