Formatting Day of Week Data
If you simply need to format the day of the week for displaying or printing out the date, then no special computation or statement is needed.
To format the day of the week:
In the Results section, select the date item and choose Format, then Number.
The Number page of the Properties dialog box is displayed.
Select Custom from the Category list.
In the Format field, type ddd to display a three-letter day abbreviation or dddd to display the full name, and click OK.