datevecdiff

  DATEVECDIFF - Compute difference in date vectors, in seconds

   D = DATEVECDIFF(V1,V2)

   Compute the difference between 2 date vectors, V=V2-V1

   V1 and V2 should be date vectors in the style of DATEVEC
   (V1 = [year month date hour minute seconds])
   (V2 = [year month date hour minute seconds])

   Example:
      V1=[2013 12 25 0 0 0];
      V2=[2014 12 25 0 0 0];
      D=datevecdiff(V1,V2)

   See also: NOW, DATEVEC