...> (DATEDIFF(second,'1/1/1970',{?01StartDate}-84) + (datediff(second,getutcdate(),getdate()) - (datediff(second,getutcdate(),getdate()) * 2))))
and
(survey.last_mod_dt < (DATEDIFF(second,'1/1/1970',{?02EndDate}+1) + (datediff(second,getutcdate(),getdate()) -...