Bug #77788 [Com]: date_add returns invalid time during DST transition

Edit report at https://bugs.php.net/bug.php?id=77788&edit=1 ID: 77788 Comment by: r dot schuil at gmail dot com Reported by: r dot schuil at gmail dot com Summary: date_add returns invalid time during DST transition Status: Assigned Type: Bug Package: Date/time related Operating System: Ubuntu PHP Version: 7.2.16 Assigned To: derick Block user comment: N Private report: N New Comment: Still not fixed? Previous Comments: ------------------------------------------------------------------------ [2019-03-24 09:43:11] r dot schuil at gmail dot com $ php -r 'echo date_default_timezone_get(); Europe/Berlin ------------------------------------------------------------------------ [2019-03-24 09:37:51] requinix@php.net What does date_default_timezone_get() return? ------------------------------------------------------------------------ [2019-03-24 09:31:39] r dot schuil at gmail dot com Description: ------------ When the addition to date/time causes it to be within the hour of DST transition, PHP returns an invalid date/time. For example, 2019-01-31 02:00:12 plus two months returns 2019-03-31 02:00:12, which gets rejected by MySQL because the 3rd hour does not exist on this date. Instead, it should return 2019-03-31 03:00:12 Test script: --------------- <?php $date = date_create('2019-01-31 02:00:12'); date_add($date, date_interval_create_from_date_string('2 months')); echo date_format($date, 'Y-m-d H:i:s'); ?> Expected result: ---------------- 2019-03-31 03:00:12 Actual result: -------------- 2019-03-31 02:00:12 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77788&edit=1