note 113532 added to datetime.modify

modify() ignores any timezone information in the data while the DateTime constructor does not. $dt = new DateTime( '2013-10-26T11:00:00+11:00' ) will create a +11 timezone while $dt->modify( '2013-10-26T11:00:00+02:00' ) does not change the timezone or the time. <?php $dt = new DateTime( '2013-10-26T15:00:00Australia/Melbourne' ) ; echo "\n", $dt->format( "c" ) ; echo "\nTimezone '", $dt->getTimezone()->getName() . "'." ; // modify $dt to 1 am new york which is 3 pm melbourne $dt->modify( '2013-10-26T01:00:00America/New_York' ) ; // result is 1 am melbourne time, not 3 pm echo "\n", $dt->format( "c" ) ; echo "\nTimezone '", $dt->getTimezone()->getName() . "'." ; ?> Output 2013-10-26T15:00:00+11:00 Timezone 'Australia/Melbourne'. 2013-10-26T01:00:00+11:00 Timezone 'Australia/Melbourne'. ---- Server IP: 192.41.45.150 Probable Submitter: 114.76.128.172 ---- Manual Page -- http://php.net/manual/en/datetime.modify.php Edit -- https://master.php.net/note/edit/113532 Del: integrated -- https://master.php.net/note/delete/113532/integrated Del: useless -- https://master.php.net/note/delete/113532/useless Del: bad code -- https://master.php.net/note/delete/113532/bad+code Del: spam -- https://master.php.net/note/delete/113532/spam Del: non-english -- https://master.php.net/note/delete/113532/non-english Del: in docs -- https://master.php.net/note/delete/113532/in+docs Del: other reasons-- https://master.php.net/note/delete/113532 Reject -- https://master.php.net/note/reject/113532 Search -- https://master.php.net/manage/user-notes.php