This thing explained here #3673.
I have a date field in my entity and form for it.
in database: 31.10.2011
at form: 30.10.2011
symfony 2.1.1-DEV
my timezone set to "Asia/Yekaterinburg" in php.ini

Problem somewhere at this lines at DateTimeToLocalizedStringTransformer

        echo $dateTime->format('d.m.Y H:i:s T');
        // convert time to UTC before passing it to the formatter
        $dateTime = clone $dateTime;
        if ('UTC' !== $this->inputTimezone) {
            $dateTime->setTimezone(new \DateTimeZone('UTC'));
        }
        echo $dateTime->format('d.m.Y H:i:s T');

31.10.2011 00:00:00 YEKT
30.10.2011 18:00:00 UTC

Why do symfony convert date to UTC before being shown it in the form