A calendarA project calendar lists time intervals in which activities ... of working days or shifts that establishes those dates on which scheduleSee project schedule and see also schedule model. The timing... activities are worked and nonworking days that determine those dates on which scheduleSee project schedule and see also schedule model. The timing... activities are idle. Typically defines holidays, weekends, and shift hours. See also resource calendarA calendar of working days and nonworking days that determin....