diff --git a/.travis.yml b/.travis.yml
index 95dbc421be..8ed9858691 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,7 +21,6 @@ matrix:
         - php: hhvm
     allow_failures:
         - php: nightly
-        - php: hhvm
     fast_finish: true
 
 services: mongodb
diff --git a/src/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToArrayTransformer.php b/src/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToArrayTransformer.php
index afbfc1041e..07070952f5 100644
--- a/src/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToArrayTransformer.php
+++ b/src/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToArrayTransformer.php
@@ -179,15 +179,16 @@ class DateTimeToArrayTransformer extends BaseDateTimeTransformer
 
         try {
             $dateTime = new \DateTime(sprintf(
-                '%s-%s-%s %s:%s:%s %s',
+                '%s-%s-%s %s:%s:%s',
                 empty($value['year']) ? '1970' : $value['year'],
                 empty($value['month']) ? '1' : $value['month'],
                 empty($value['day']) ? '1' : $value['day'],
                 empty($value['hour']) ? '0' : $value['hour'],
                 empty($value['minute']) ? '0' : $value['minute'],
-                empty($value['second']) ? '0' : $value['second'],
-                $this->outputTimezone
-            ));
+                empty($value['second']) ? '0' : $value['second']
+                ),
+                new \DateTimeZone($this->outputTimezone)
+            );
 
             if ($this->inputTimezone !== $this->outputTimezone) {
                 $dateTime->setTimezone(new \DateTimeZone($this->inputTimezone));
diff --git a/src/Symfony/Component/HttpFoundation/Tests/ClockMock.php b/src/Symfony/Component/HttpFoundation/Tests/ClockMock.php
new file mode 100644
index 0000000000..04a842d9b5
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/ClockMock.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpFoundation;
+
+function time($asFloat = false)
+{
+    return Tests\time();
+}
+
+namespace Symfony\Component\HttpFoundation\Tests;
+
+function time()
+{
+    return $_SERVER['REQUEST_TIME'];
+}
diff --git a/src/Symfony/Component/HttpFoundation/Tests/CookieTest.php b/src/Symfony/Component/HttpFoundation/Tests/CookieTest.php
index 0aaeb6baa1..b8474db15f 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/CookieTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/CookieTest.php
@@ -13,6 +13,8 @@ namespace Symfony\Component\HttpFoundation\Tests;
 
 use Symfony\Component\HttpFoundation\Cookie;
 
+require_once __DIR__.'/ClockMock.php';
+
 /**
  * CookieTest.
  *
diff --git a/src/Symfony/Component/HttpFoundation/Tests/ResponseHeaderBagTest.php b/src/Symfony/Component/HttpFoundation/Tests/ResponseHeaderBagTest.php
index d5596f746c..0fa198e098 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/ResponseHeaderBagTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/ResponseHeaderBagTest.php
@@ -14,6 +14,8 @@ namespace Symfony\Component\HttpFoundation\Tests;
 use Symfony\Component\HttpFoundation\ResponseHeaderBag;
 use Symfony\Component\HttpFoundation\Cookie;
 
+require_once __DIR__.'/ClockMock.php';
+
 class ResponseHeaderBagTest extends \PHPUnit_Framework_TestCase
 {
     /**
diff --git a/src/Symfony/Component/Stopwatch/Tests/ClockMock.php b/src/Symfony/Component/Stopwatch/Tests/ClockMock.php
new file mode 100644
index 0000000000..5bbe6b1db8
--- /dev/null
+++ b/src/Symfony/Component/Stopwatch/Tests/ClockMock.php
@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Stopwatch;
+
+function microtime($asFloat = false)
+{
+    return Tests\microtime($asFloat);
+}
+
+namespace Symfony\Component\Stopwatch\Tests;
+
+function usleep($us)
+{
+    static $now;
+
+    if (null === $now) {
+        $now = \microtime(true);
+    }
+
+    return $now += $us / 1000000;
+}
+
+function microtime($asFloat = false)
+{
+    if (!$asFloat) {
+        return \microtime(false);
+    }
+
+    return usleep(1);
+}
diff --git a/src/Symfony/Component/Stopwatch/Tests/StopwatchEventTest.php b/src/Symfony/Component/Stopwatch/Tests/StopwatchEventTest.php
index c2626f67d8..4386d94fca 100644
--- a/src/Symfony/Component/Stopwatch/Tests/StopwatchEventTest.php
+++ b/src/Symfony/Component/Stopwatch/Tests/StopwatchEventTest.php
@@ -13,6 +13,8 @@ namespace Symfony\Component\Stopwatch\Tests;
 
 use Symfony\Component\Stopwatch\StopwatchEvent;
 
+require_once __DIR__.'/ClockMock.php';
+
 /**
  * StopwatchEventTest.
  *
diff --git a/src/Symfony/Component/Stopwatch/Tests/StopwatchTest.php b/src/Symfony/Component/Stopwatch/Tests/StopwatchTest.php
index a14b6e80ea..0d05e8f800 100644
--- a/src/Symfony/Component/Stopwatch/Tests/StopwatchTest.php
+++ b/src/Symfony/Component/Stopwatch/Tests/StopwatchTest.php
@@ -13,6 +13,8 @@ namespace Symfony\Component\Stopwatch\Tests;
 
 use Symfony\Component\Stopwatch\Stopwatch;
 
+require_once __DIR__.'/ClockMock.php';
+
 /**
  * StopwatchTest.
  *
diff --git a/src/Symfony/Component/Translation/PluralizationRules.php b/src/Symfony/Component/Translation/PluralizationRules.php
index e1eac82ce9..3ef8f00b6e 100644
--- a/src/Symfony/Component/Translation/PluralizationRules.php
+++ b/src/Symfony/Component/Translation/PluralizationRules.php
@@ -55,6 +55,7 @@ class PluralizationRules
          * Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
          */
         switch ($locale) {
+            case 'az':
             case 'bo':
             case 'dz':
             case 'id':
@@ -73,7 +74,6 @@ class PluralizationRules
                 break;
 
             case 'af':
-            case 'az':
             case 'bn':
             case 'bg':
             case 'ca':