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Bug #46747 validFrom_time_t of certificate in Windows is difference with Unix system
Submitted: 2008-12-04 06:27 UTC Modified: 2009-01-16 02:18 UTC
From: hunreal at gmail dot com Assigned:
Status: Not a bug Package: OpenSSL related
PHP Version: 5.2.6 OS: Windows, FreeBSD
Private report: No CVE-ID: None
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From: hunreal at gmail dot com
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 [2008-12-04 06:27 UTC] hunreal at gmail dot com 
Description:
------------
I used openssl_x509_parse() to get certificate infomation. But the values, 'validFrom_time_t' and 'validTo_time_t' in Windows is difference with Unix system.
It's same php code, same certificate file. But two result is not the same.
By used openssl CLI, I am sure that is Windows PHP issue.

Reproduce code:
---------------
PHP code:
<?php
$crtinfo = openssl_x509_parse(file_get_contents("my.cer"));
echo $crtinfo['validFrom']," ",$crtinfo['validFrom_time_t'],"\n";
echo $crtinfo['validTo']," ",$crtinfo['validTo_time_t'],"\n";
echo date("Y-m-d H:i:s", $crtinfo['validFrom_time_t']),"\n";
echo date("Y-m-d H:i:s", $crtinfo['validTo_time_t']),"\n";
?>

Openssl CLI:
openssl x509 -dates -noout -in my.cer

You can use any certificate.

Expected result:
----------------
In windows, PHP code output,
070126220002Z 1169845202
090126033531Z 1232937331
2007-01-27 05:00:02
2009-01-26 10:35:31
------------------------------
In Unix, PHP code output,
070126220002Z 1169848802
090126033531Z 1232940931
2007-01-27 06:00:02
2009-01-26 11:35:31
------------------------------
BTW, my timezone is set to Asia/Shanghai, GMT+8

Actual result:
--------------
OpenSSL CLI output,
notBefore=Jan 26 22:00:02 2007 GMT
notAfter=Jan 26 03:35:31 2009 GMT

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 [2008-12-08 11:41 UTC] jani@php.net 
One of those machines has wrong timezone set. Use the date_default_timezone_set() function in your script to set the correct one in both. And check those machines' system time too. This is not a PHP bug.
 [2009-01-16 02:18 UTC] hunreal at gmail dot com 
Tried set date_default_timezone_set('Asia/Shanghai');
but the problem is still exists.
OS: Windows Vista
 [2013-05-27 03:22 UTC] cheef-daniel at freenet dot de 
If this is not a bug, can you please explain why I get wrong results too on Windows Server 2008 R2 + Apache?

wrong: 27.03.2021 22:59:59
expected: 28.03.2021 00:59:59

echo phpversion();
5.3.16

echo date_default_timezone_get();
Europe/Berlin

echo $timestamp = $certInfo["validTo_time_t"]
1616882399

echo date("d.m.Y H:i:s", $timestamp)
27.03.2021 22:59:59

openssl x509 -dates -noout -in my.crt
notAfter=Mar 27 22:59:59 2021 GMT
 
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