Bug #72486 [NEW]: Converting DateTime where DST overlap occurs to UTC fails

From: Date: Fri, 24 Jun 2016 11:03:12 +0000
Subject: Bug #72486 [NEW]: Converting DateTime where DST overlap occurs to UTC fails
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-201821@lists.php.net to get a copy of this message 
From:             matthieux dot dekamen at gmail dot com
Operating system: 
PHP version:      7.1.0alpha1
Package:          Date/time related
Bug Type:         Bug
Bug description:Converting DateTime where DST overlap occurs to UTC fails

Description:
------------
convert Brussels' time 2016-10-30T02:30:00+01:00 to UTC:
2016-10-30T01:30:00+00:00 // OK

convert Brussels' time 2016-10-30T02:30:00+02:00 to UTC:
2016-10-30T01:30:00+00:00 // KO => should be 00:30:00+00:00

https://3v4l.org/C9TJ6

PS: HHVM gets it right


-- 
Edit bug report at https://bugs.php.net/bug.php?id=72486&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=72486&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=72486&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=72486&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=72486&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=72486&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=72486&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=72486&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=72486&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=72486&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=72486&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=72486&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=72486&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=72486&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72486&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=72486&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=72486&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=72486&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=72486&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=72486&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=72486&r=mysqlcfg

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