Bug #77741 [NEW]: DateTimeZone/setTimezone returns wrong values

From: info at akebono dot nl Operating system: Windows 10 PHP version: 7.2.16 Package: Date/time related Bug Type: Bug Bug description:DateTimeZone/setTimezone returns wrong values Description: ------------ Wrong value output. It does not matter whether TimeZoneNameFrom is set to PST or PDT. Test script: --------------- TimeZoneNameFrom = 'PST'; TimeZoneNameTo = 'Europe/Amsterdam'; TimeStr = '2019-3-20 23:59:00'; $convertedTime = date_create($TimeStr, new DateTimeZone($TimeZoneNameFrom))->setTimezone(new DateTimeZone($TimeZoneNameTo))->format("j F H.i"); Expected result: ---------------- 21 March 07.59 CET Actual result: -------------- 21 March 08.59 CET -- Edit bug report at https://bugs.php.net/bug.php?id=77741&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77741&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77741&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77741&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77741&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77741&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77741&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77741&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77741&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77741&r=support Expected behavior: https://bugs.php.net/fix.php?id=77741&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77741&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77741&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77741&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77741&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77741&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77741&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77741&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77741&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77741&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77741&r=mysqlcfg