1--TEST-- 2Bug #74671 (DST timezone abbreviation has incorrect offset) 3--FILE-- 4<?php 5$dt = new DateTime( 6 '2017-05-16T10:11:32', 7 new DateTimeZone('CEST') 8); 9var_dump($dt); 10var_dump($dt->format('c')); 11?> 12--EXPECTF-- 13object(DateTime)#%d (%d) { 14 ["date"]=> 15 string(26) "2017-05-16 10:11:32.000000" 16 ["timezone_type"]=> 17 int(2) 18 ["timezone"]=> 19 string(4) "CEST" 20} 21string(25) "2017-05-16T10:11:32+02:00" 22