Description:
------------
The IntlDateFormatter and MessageFormatter class do not respect the date.timezone INI setting in PHP.

They only honor the TZ environment setting.

There is a workaround, which is calling the following line before using the date formatters for the first time:

putenv('TZ=' . ini_get('date.timezone'));

Reproduce code:
---------------
<?php

$time = 1247013673;

putenv('TZ');  // unset TZ
ini_set('date.timezone', 'America/New_York');

$fmt = new IntlDateFormatter('en_US', IntlDateFormatter::FULL, IntlDateFormatter::FULL);
$msgf = new MessageFormatter('en_US', '{0,date,full} {0,time,full}');

echo "date: " . @date('l, F j, Y g:i:s A T', $time) . "\n";
echo "intl: " . $fmt->format($time) . "\n";
echo "msgf: " . $msgf->format(array($time)) . "\n";
echo "\n";


Expected result:
----------------
date: Tuesday, July 7, 2009 8:41:13 PM EDT
intl: Tuesday, July 7, 2009 8:41:13 PM ET
msgf: Tuesday, July 7, 2009 8:41:13 PM ET


Actual result:
--------------
date: Tuesday, July 7, 2009 8:41:13 PM EDT
intl: Tuesday, July 7, 2009 7:41:13 PM GMT-05:00
msgf: Tuesday, July 7, 2009 7:41:13 PM GMT-05:00

(Notice that the IntlDateFormatter and MessageFormatter do not account for daylight time)

using putenv('TZ=' . ini_get('date.timezone')); instead of putenv('TZ') causes the Expected Result to occur.