F$CVTIME

   Converts an absolute or a combination time string to a string of
   the form yyyy-mm-dd hh:mm:ss.cc. The F$CVTIME function can also
   return information about an absolute, combination, or delta time
   string.

   Format

     F$CVTIME([input_time] [,output_time_format] [,output_field])

Additional information available:

Return_Value    Arguments       Examples