Edit report at http://bugs.php.net/bug.php?id=51051&edit=1
ID: 51051
Comment by: halde at freenet dot de
Reported by: mehdi dot rande at aliasource dot fr
Summary: DateTime modify wrong result with DST change
Status: Assigned
Type: Bug
Package: Date/time related
Operating System: Linux
PHP Version: 5.3.1
Assigned To: derick
Block user comment: N
Private report: N
New Comment:
reproduced issue of previous poster on a linux machine (timestamps are
not
equal):
$ php -a
Interactive shell
php > $dt = new DateTime('now', new DateTimeZone('Europe/Berlin'));
php > $dt->setTimestamp(1288483200);
php > echo $dt->getTimestamp();
1288486800
php > echo phpversion();
5.3.3-1ubuntu9.3
php > exit
$ uname -a
Linux wum128229 2.6.35-28-generic #49-Ubuntu SMP Tue Mar 1 14:39:03 UTC
2011
x86_64 GNU/Linux
Previous Comments:
------------------------------------------------------------------------
[2011-02-24 17:07:56] j dot ek at gmx dot net
Think I found a related issue, reproduce it with:
<?php
$dt = new DateTime('now', new DateTimeZone('Europe/Berlin'));
// try to set timestamp of 2010-10-31T02:00:00+0200
$dt->setTimestamp(1288483200);
// but returns timestamp of 2010-10-31T02:00:00+0100
echo $dt->getTimestamp(); // outputs 1288486800
?>
WinXP 32, PHP 5.3.2 (cli) (built: Mar 3 2010 20:36:54)
------------------------------------------------------------------------
[2010-12-25 02:46:45] danielc at analysisandsolutions dot com
DateTime::diff() is similarly afflicted with daylight/standard change
over issues. Naturally, diff/add/sub all need to be in sync so
intervals returned by diff can be passed to add/sub and produce the
original datetime.
------------------------------------------------------------------------
[2010-12-25 02:27:22] [email protected]
I just attached a test script that covers issues in the spring and fall.
------------------------------------------------------------------------
[2010-12-25 02:26:16] [email protected]
The following patch has been added/updated:
Patch Name: bug51051test.php.txt
Revision: 1293240376
URL:
http://bugs.php.net/patch-display.php?bug=51051&patch=bug51051test.php.txt&revision=1293240376
------------------------------------------------------------------------
[2010-08-24 14:34:22] glennpratt+php at gmail dot com
Correction for the Expected result above.
Expected Result
---------------
2011-03-13T03:00:00-05:00 America/Chicago
2011-03-13T01:58:00-06:00 America/Chicago
------------------------------------------------------------------------
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