$ date "+%Y-%m-%dT%H:%M:%S%z" 2011-02-10T01:13:07-0800 $ date --iso-8601 2011-02-10 $ perl -MTime::Piece -le"print Time::Piece->localtime->strftime(q!%Y-%m-%dT%H:%M:%S%z!);" 2011-02-10T01:13:41PST