#27327 [Opn->Bgs]: Problem with 2004-03-28 (summer time conversion)

ID: 27327 Updated by: sniper@php.net Reported By: timo at reflection-metal dot de -Status: Open +Status: Bogus Bug Type: Date/time related Operating System: Suse, RedHat, WinXP, W2K PHP Version: 4.3.4 New Comment: We are happy to tell you that you just discovered Daylight Savings Time. For more information see: http://webexhibits.org/daylightsaving/b.html Instead of using mktime/date consider using gmmktime and gmdate which do not suffer from DST. Previous Comments: ------------------------------------------------------------------------ [2004-02-20 03:41:56] timo at reflection-metal dot de Just found out that this bug is a problem with summer time conversion. You could check out e.g. 2003-03-30... In addition: If you subtract 1 minute from '2004-03-28 03:00:00' it results in '2004-03-28 03:59:00' ------------------------------------------------------------------------ [2004-02-20 02:53:44] timo at reflection-metal dot de Description: ------------ The mktime function gives strange results when adding something that results between '2004-03-28 01:00:00' and '2004-03-28 01:01:00'. Reproduce code: --------------- $STTDate = strToTime('2004-03-28 00:30:00'); $StrangeDate = date('Y-m-d H:i:s', mktime(date('H',$STTDate),date('i',$STTDate)+30,0,date('m',$STTDate),date('d',$STTDate),date('Y',$STTDate))); Expected result: ---------------- 2004-03-28 01:00:00 Actual result: -------------- 2004-03-28 03:00:00 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=27327&edit=1