<?php
    class KesharTechnosys_Datefix_Model_Entity_Attribute_Backend_Time_Created extends Mage_Eav_Model_Entity_Attribute_Backend_Time_Created
        {

        public function beforeSave($object)
        {
            $attributeCode = $this->getAttribute()->getAttributeCode();
            $date          = $object->getData($attributeCode);
            if (is_null($date)) {
                if ($object->isObjectNew()) {
                    $object->setData($attributeCode, Varien_Date::now());
                }
            } else {
                $date = strtotime($date);

                $zendDate = Mage::app()->getLocale()->utcDate(null, $date, true);
                $object->setData($attributeCode, $zendDate->getIso());
            }

            return $this;
        }


        public function afterLoad($object)
        {
            $attributeCode = $this->getAttribute()->getAttributeCode();
            $date          = $object->getData($attributeCode);

            if (!is_null($date)) {
                $date = strtotime($date);
            }

            $zendDate = Mage::app()->getLocale()->storeDate(null, $date, true);
            $object->setData($attributeCode, $zendDate->getIso());

            parent::afterLoad($object);

            return $this;
        }
    }
?>