Do your resources, as individuals, really work 7 days a week? If you assign
Joe to a task that will take 3 weeks to complete, does he not get any time
off until it's done, not a single day off for the entire 3 weeks? Not
saying that can't happen but I would think it would be rare and in fact it
would be illegal in most employment situations and jurisdictions. Setting
your project calendar so every day is a working day says that's exactly the
way each of your employees work, that no one ever gets a day off. The
calendar determines the hours during which a task will be scheduled. Since
tasks should be broken down to the point that a task in your project plan is
the activity of ONE resource or a TEAM of resources who work together as a
single unit, the calendar should reflect the work hours when that single
individual or group will be physically present on the job. It does not
describe the overall hours of operation of your firm - it describes the
working hours of a typical resource on your project and should reflect their
days off.