<?php

namespace Oro\Bundle\LocaleBundle\DoctrineExtensions\DBAL\Types;

use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\DBAL\Types\ConversionException;
use Doctrine\DBAL\Types\DateTimeType;

class UTCDateTimeType extends DateTimeType
{
    /** @var null| \DateTimeZone  */
    static private $utc = null;

    /**
     * {@inheritdoc}
     */
    public function convertToDatabaseValue($value, AbstractPlatform $platform)
    {
        if ($value === null) {
            return null;
        }

        $value->setTimeZone((self::$utc) ? self::$utc : (self::$utc = new \DateTimeZone('UTC')));

        return parent::convertToDatabaseValue($value, $platform);
    }

    /**
     * {@inheritdoc}
     */
    public function convertToPHPValue($value, AbstractPlatform $platform)
    {
        if ($value === null) {
            return null;
        }

        $val = \DateTime::createFromFormat(
            $platform->getDateTimeFormatString(),
            $value,
            (self::$utc) ? self::$utc : (self::$utc = new \DateTimeZone('UTC'))
        );

        if (!$val) {
            throw ConversionException::conversionFailed($value, $this->getName());
        }

        return $val;
    }
}

<?php

namespace Oro\Bundle\LocaleBundle\DoctrineExtensions\DBAL\Types;

use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\DBAL\Types\ConversionException;
use Doctrine\DBAL\Types\DateTimeType;

class UTCDateTimeType extends DateTimeType
{
    static private $utc = null;

    public function convertToDatabaseValue($value, AbstractPlatform $platform)
    {
        if ($value === null) {
            return null;
        }

        $value->setTimeZone(new \DateTimeZone('UTC'));

        return parent::convertToDatabaseValue($value, $platform);
    }

    public function convertToPHPValue($value, AbstractPlatform $platform)
    {
        if ($value === null) {
            return null;
        }

        $val = \DateTime::createFromFormat(
            $platform->getDateTimeFormatString(),
            $value,
            (self::$utc) ? self::$utc : (self::$utc = new \DateTimeZone('UTC'))
        );

        if (!$val) {
            throw ConversionException::conversionFailed($value, $this->getName());
        }

        return $val;
    }
}

--- 
+++ 
@@ -8,19 +8,26 @@
 
 class UTCDateTimeType extends DateTimeType
 {
+    /** @var null| \DateTimeZone  */
     static private $utc = null;
 
+    /**
+     * {@inheritdoc}
+     */
     public function convertToDatabaseValue($value, AbstractPlatform $platform)
     {
         if ($value === null) {
             return null;
         }
 
-        $value->setTimeZone(new \DateTimeZone('UTC'));
+        $value->setTimeZone((self::$utc) ? self::$utc : (self::$utc = new \DateTimeZone('UTC')));
 
         return parent::convertToDatabaseValue($value, $platform);
     }
 
+    /**
+     * {@inheritdoc}
+     */
     public function convertToPHPValue($value, AbstractPlatform $platform)
     {
         if ($value === null) {
BAP-1664: Apply configuration settings to system features
   - fix timezone
