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Bug #64294 date conversion problem when dst present
Submitted: 2013-02-25 09:55 UTC Modified: 2013-11-27 17:26 UTC
From: ybrigant at gmail dot com Assigned:
Status: Not a bug Package: Date/time related
PHP Version: 5.3.22 OS: linux debian
Private report: No CVE-ID: None
View Add Comment Developer Edit
 [2013-02-25 09:55 UTC] ybrigant at gmail dot com 
Description:
------------
COnversion of an utc timestamp to a date in a scpecific timezone, ie EUrope/Paris where we have dst activated in the date example...

Test script:
---------------
$timestamp = 1382954400;
$date = new \DateTime('@'.$timestamp);
$tz = new \DateTimeZone('Europe/Paris');
$date->setTimezone($tz);
return $date->format(Y-m-d H:i');

Expected result:
----------------
2013-10-28 12:00

Actual result:
--------------
2013-10-28 11:00

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 [2013-02-25 10:42 UTC] ybrigant at gmail dot com 
Sorry, I forgot to add that timestamp provided is in utc timezone.
 [2013-02-27 01:26 UTC] mail+php at requinix dot net 
DST in Europe ends at 2013-10-27 01:00.

By the way, Unix timestamps don't have timezones.
 [2013-02-27 01:28 UTC] mail+php at requinix dot net 
01:00 UTC that is, so 02:00 Europe/Paris.
 [2013-11-27 17:26 UTC] derick@php.net
-Status: Open +Status: Not a bug
 [2013-11-27 17:26 UTC] derick@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

This does look just fine:

<?php
$timestamp = 1382954400;
$date = new \DateTime('@'.$timestamp);
echo $date->format('Y-m-d H:i T O'), "\n";
$tz = new \DateTimeZone('Europe/Paris');
$date->setTimezone($tz);
echo $date->format('Y-m-d H:i T O'), "\n";
?>

outputs as expected:

2013-10-28 10:00 GMT+0000 +0000
2013-10-28 11:00 CET +0100
 
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