Use the Calendar Weekly Hours dialog box to specify the number of default working hours for each weekday in the open calendar.
Using Total work hours/day
Standard work hours: Displays the default number of working hours for each day in the open calendar.
Using Detailed work hours/day
Day of the Week: Select a day of the week to set its default number of working hours.
Work hours: Displays the default number of working hours for the selected day in the open calendar.
Work: Makes the selected hour a working hour.
Nonwork: Makes the selected hour a nonwork hour.