DAYSTR Function
The DAYSTR function returns the string value of the day of the week according to the Regional Settings specified for the computer. Use this calculation with an alphanumeric cell.
Syntax
DAYSTR(expression)
Example
DAYSTR(CLP13)
Where CLP13 represents the year-end date in the Engagement Properties. If the year-end date is December 31, 2006, Sunday appears in the cell.