WEEKEND() returns T if the specified DateTime field value falls on a Saturday or Sunday.
Use WEEKEND() to identify or exclude DateTime field values that occur on weekends.
WEEKEND(D)
WEEKEND() returns T if the specified DateTime D falls on a weekend (i.e. Saturday or Sunday), otherwise the function returns F.
Acceptable dates are in the range January 1, 1900 to December 31, 9999.
Using a date of August 16, 2014:
WEEKEND(‘20140816‘) = T
Using a date of August 14, 2014:
WEEKEND(‘20140814‘) = F