the 5 day 9 to 5 is a big scam. there should be more flexible working or even shorter week, for example work 40 hours between 3-4 days and have a 3 day break, or make the 4 days off and 4 days on more common, you could also have shift slots where people can choose shifts accodomating to their needs, for example some people love starting early and finishing early whilst others prefer a lie in and starting at 12pm etc. in any case, in my and many others job, most of the work is done around lunch and the rest of the hours you are just doing nothing until its 530pm. its a scam