#47909 [Bgs]: summer hour withda date object

ID: 47909 User updated by: asylow at free dot fr Reported By: asylow at free dot fr Status: Bogus Bug Type: Date/time related Operating System: windows XP PHP Version: 5.2.9 New Comment: Thank you for the answer. Well that doesn't make sense to me and that's quite tricky. I don't see a case where i would need to know what would be the next hour number on a clock. The logical usage would be me moving through time and needing to know what time it is. Is the behaviour referenced somewhere ? Previous Comments: ------------------------------------------------------------------------ [2009-04-06 14:22:19] derick@php.net This is how it is supposed to work. The relative date modifiers are for *clock time*, not *real time*. ------------------------------------------------------------------------ [2009-04-06 14:17:51] asylow at free dot fr Description: ------------ Hi, When adding +2 hours to '2009-10-25 01:00:00', '03:00:00' is obtained, skipping the second '02:00:00' that exists during that night. Reproduce code: --------------- Comparison between using +1 hour to the object and adding +3600 to the timestamp : <?php $date1 = '2009-10-25 01:00:00'; $obj_date = date_create($date1); $timestamp = strtotime($date1); $timestamp += 3600; $obj_date->modify('+1 hour'); echo '+1 hour<br>'; echo 'timestamp : ' . date('H:i:s',$timestamp) . ' ' . $timestamp . '<br/>'; echo 'date_obj : ' . $obj_date->format('H:i:s') . ' ' . $obj_date->format('U') . '<br><br>'; echo '+2 hours<br>'; $timestamp += 3600; $obj_date->modify('+1 hour'); echo 'timestamp : ' . date('H:i:s',$timestamp) . ' ' . $timestamp . '<br/>'; echo 'date_obj : ' . $obj_date->format('H:i:s') . ' ' . $obj_date->format('U') . '<br><br>'; ?> Expected result: ---------------- +1 hour timestamp : 02:00:00 1256428800 date_obj : 02:00:00 1256432400 +2 hours timestamp : 02:00:00 1256432400 date_obj : 02:00:00 1256432400 Actual result: -------------- +1 hour timestamp : 02:00:00 1256428800 date_obj : 02:00:00 1256432400 +2 hours timestamp : 02:00:00 1256432400 date_obj : 03:00:00 1256436000 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=47909&edit=1