Edit report at https://bugs.php.net/bug.php?id=55253&edit=1
ID: 55253
Comment by: dani...@php.net
Reported by: danielc at analysisandsolutions dot com
Summary: DateTime::add() and sub() result -1 hour on objects
with time zone type 2
Status: Open
Type: Bug
Package: Date/time related
Operating System: Ubuntu 10.04
PHP Version: 5.4SVN-2011-07-20 (SVN)
Block user comment: N
Private report: N
New Comment:
This is probably related to https://bugs.php.net/bug.php?id=60236
Previous Comments:
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[2011-07-20 14:24:08] dani...@php.net
Automatic comment from SVN on behalf of danielc
Revision: http://svn.php.net/viewvc/?view=revision&revision=313484
Log: Rename and enhance test for bug 55253 now that bugs web is up.
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[2011-07-20 14:18:36] danielc at analysisandsolutions dot com
Description:
------------
Calling add() or sub() on DateTime objects using a type 2 time zone results in
the answer being behind by one hour.
Test script has been added to SVN.
Test script:
---------------
date_default_timezone_set('America/New_York');
$interval = new DateInterval('PT2H1M');
$date3 = new DateTime('2010-10-04 02:18:48');
$date2 = new DateTime('2010-10-04 02:18:48 EDT');
echo 'Zone Type 3: ' . $date3->format('Y-m-d H:i:s T') . "\n";
echo 'Zone Type 2: ' . $date2->format('Y-m-d H:i:s T') . "\n";
echo $interval->format('Add %h hours %i minutes') . "\n";
$date3->add($interval);
$date2->add($interval);
echo 'Zone Type 3: ' . $date3->format('Y-m-d H:i:s T') . "\n";
echo 'Zone Type 2: ' . $date2->format('Y-m-d H:i:s T') . "\n";
// Try subtracting from expected result.
$date3 = new DateTime('2010-10-04 04:19:48');
$date2 = new DateTime('2010-10-04 04:19:48 EDT');
echo $interval->format('Subtract %h hours %i minutes from expected') . "\n";
$date3->sub($interval);
$date2->sub($interval);
echo 'Zone Type 3: ' . $date3->format('Y-m-d H:i:s T') . "\n";
echo 'Zone Type 2: ' . $date2->format('Y-m-d H:i:s T') . "\n";
Expected result:
----------------
Zone Type 3: 2010-10-04 02:18:48 EDT
Zone Type 2: 2010-10-04 02:18:48 EDT
Add 2 hours 1 minutes
Zone Type 3: 2010-10-04 04:19:48 EDT
Zone Type 2: 2010-10-04 04:19:48 EDT
Subtract 2 hours 1 minutes from expected
Zone Type 3: 2010-10-04 02:18:48 EDT
Zone Type 2: 2010-10-04 02:18:48 EDT
Actual result:
--------------
Zone Type 3: 2010-10-04 02:18:48 EDT
Zone Type 2: 2010-10-04 02:18:48 EDT
Add 2 hours 1 minutes
Zone Type 3: 2010-10-04 04:19:48 EDT
Zone Type 2: 2010-10-04 03:19:48 EDT
Subtract 2 hours 1 minutes from expected
Zone Type 3: 2010-10-04 02:18:48 EDT
Zone Type 2: 2010-10-04 01:18:48 EDT
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Edit this bug report at https://bugs.php.net/bug.php?id=55253&edit=1
