% python -c ‘from time import strftime, localtime; print strftime(“%a, %d %b %Y %H:%M:%S”, localtime(1234567890))’
Sat, 14 Feb 2009 07:31:30

% date -d ‘@1234567890’
Sat Feb 14 07:31:30 CST 2009

% perl -e ‘print scalar localtime(1234567890),”n”; ‘
Sat Feb 14 07:31:30 2009