Bug #55657 [Opn->Bgs]: Adding a day to the timestamp does not change the value of date('d',$ts)

Edit report at https://bugs.php.net/bug.php?id=55657&edit=1 ID: 55657 Updated by: dtajchreber@php.net Reported by: steve7642 at gmail dot com Summary: Adding a day to the timestamp does not change the value of date('d',$ts) -Status: Open +Status: Bogus Type: Bug Package: Date/time related Operating System: Linux linuxvps1.ciniva.com 2.6.1 PHP Version: Irrelevant Block user comment: N Private report: N New Comment: You've discovered daylight saving time! This code helps you understand what happens slightly better: http://codepad.org/kBgS1g6W [1] http://en.wikipedia.org/wiki/Daylight_saving_time Previous Comments: ------------------------------------------------------------------------ [2011-09-09 18:26:17] steve7642 at gmail dot com Description: ------------ Adding 7 days to the timestamp for 2011-11-05 increased the date by 6 days only. run sample code. Test script: --------------- /* It appears that the day function of the time stamp is falling behind . */ $ts = mktime(0,0,0,10,29,2011) + 7*86400 ; $mday1 = date('d',$ts); //OK $ts = mktime(0,0,0,10,29,2011) + 14*86400 ; $mday2 = date('d',$ts); //1 day behind $ts = mktime(0,0,0,10,29,2011) + 21*86400 ; $mday3 = date('d',$ts); // 1 day behind echo $mday1. ' ' . $mday2.' '. $mday3 ; ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=55657&edit=1