anchor.diff:  MODULE datetime_module
   !======================================================================>
   !
  -! VERSION: 1.0.4
  -!
  -! LAST UPDATE: 2014-10-03
  +! VERSION: 1.0.5
  +!
  +! LAST UPDATE: 2014-11-01
   !
   ! AUTHOR: Milan Curcic
   !         University of Miami
  
positive.code: 
    INTEGER :: hour,minute
  
    CALL date_and_time(zone=zone,values=values)
  
    READ(UNIT=zone(1:3),FMT='(I3)')hour
  
negative.code:   INTEGER            :: days,hours,minutes,seconds,milliseconds
    INTEGER            :: sign_
  
    daysDiff = date2num(d0)-date2num(d1)
  
    IF(daysDiff < 0)THEN
      sign_ = -1
  