%%Package
DateToTimeStamp
%

%%KnowledgeBase 
  
%

%%QuickInterview 
  @inputSize: 20
%

%%Question
QuestionDate [date]
UnixStart [date]
QuestionNum [num]
MyNow [date]
%

%%Variable
MyNow = now
%

%%Property
QuestionNum.unit = ms
%

%%Variable 
  UnixStart = date(1970, 1, 1)
%

%%Variable 
QuestionNum = now - UnixStart
%

%%Rule
IF MyNow = known
THEN QuestionNum = eval(MyNow - UnixStart / ms)
%