I tried following X86 version of "gdate", and it received different result as the 'gnudate", can you explain the difference? It seems that "gnudate: is correct. Following "gdate" is running Solaris 5.10 on X86 UNIX host; "gnudate" is running on Solaris 5.8 on Sun-Fire_V240. /usr/local/bin/gdate --date '20130614 14:46:43 + 1 sec' '+%y%m%d:%H%M%S' 130614:094544 /usr/local/bin/gnudate --date '20130614 14:46:43 + 1 sec' '+%y%m%d:%H%M%S' 130614:144644 Regards, John Lien Phone: (214)567-5844 Pager: (214)882-7930