If you have ever wanted to know what day of the week it was in your design...
$VAR dow; $VAR dlist; $VAR day;
dow = $GET_PARTY_DAYS() %# 7;
dlist = "$Sunday$Monday$Tuesday$Wednesday$Thursday$Friday$Saturday";
day = $DelimitedStringSubstring(dayList, dow);
You can use this in places that display text, such as with the TimeText Hook for display during 3D view - the current default release uses a version of this to display the day of the week near the compass.