Scalr_Util_DateTime::convertDateTime PHP Method

    public static function convertDateTime($value, $timezone, $format = 'M j, Y H:i:s')
    {
        if (is_integer($value)) {
            $value = "@{$value}";
        }
        if ($value instanceof DateTime) {
            $dt = $value;
        } else {
            $dt = new DateTime($value);
        }
        if ($dt && $dt->getTimestamp()) {
            if ($timezone) {
                $dt = self::convertTimeZone($dt, $timezone);
            }
            return $dt->format($format);
        } else {
            return NULL;
        }
    }

 function handleWork($farmId)
 {
     try {
         $dbFarm = DBFarm::LoadByID($farmId);
         $governance = new Scalr_Governance($dbFarm->EnvID);
         $settings = $governance->getValue(Scalr_Governance::CATEGORY_GENERAL, Scalr_Governance::GENERAL_LEASE, 'notifications');
         $curDate = new DateTime();
         $td = new DateTime($dbFarm->GetSetting(DBFarm::SETTING_LEASE_TERMINATE_DATE));
         if ($td > $curDate) {
             // only inform user
             $days = $td->diff($curDate)->days;
             $notifications = json_decode($dbFarm->GetSetting(DBFarm::SETTING_LEASE_NOTIFICATION_SEND), true);
             if (is_array($settings)) {
                 foreach ($settings as $n) {
                     if (!$notifications[$n['key']] && $n['period'] >= $days) {
                         $mailer = Scalr::getContainer()->mailer;
                         $tdHuman = Scalr_Util_DateTime::convertDateTime($td, $dbFarm->GetSetting(DBFarm::SETTING_TIMEZONE), 'M j, Y');
                         if ($n['to'] == 'owner') {
                             $user = new Scalr_Account_User();
                             $user->loadById($dbFarm->createdByUserId);
                             if (Scalr::config('scalr.auth_mode') == 'ldap') {
                                 $email = $user->getSetting(Scalr_Account_User::SETTING_LDAP_EMAIL);
                                 if (!$email) {
                                     $email = $user->getEmail();
                                 }
                             } else {
                                 $email = $user->getEmail();
                             }
                             $mailer->addTo($email);
                         } else {
                             foreach (explode(',', $n['emails']) as $email) {
                                 $mailer->addTo(trim($email));
                             }
                         }
                         $mailer->sendTemplate(SCALR_TEMPLATES_PATH . '/emails/farm_lease_terminate.eml', array('{{terminate_date}}' => $tdHuman, '{{farm}}' => $dbFarm->Name, '{{envName}}' => $dbFarm->GetEnvironmentObject()->name, '{{envId}}' => $dbFarm->GetEnvironmentObject()->id));
                         $notifications[$n['key']] = 1;
                         $dbFarm->SetSetting(DBFarm::SETTING_LEASE_NOTIFICATION_SEND, json_encode($notifications));
                         $this->logger->info("Notification was sent by key: " . $n['key'] . " about farm: " . $dbFarm->Name . " by lease manager");
                     }
                 }
             }
         } else {
             // terminate farm
             $event = new FarmTerminatedEvent(0, 1, false, 1);
             Scalr::FireEvent($farmId, $event);
             $this->logger->info("Farm: " . $dbFarm->Name . " was terminated by lease manager");
         }
     } catch (Exception $e) {
         var_dump($e->getMessage());
     }
 }