Magento custom module date field saving date to one day before the selected date

Question

i followed steps on this link to add a date field to my custom module :

http://magentomechanic.blogspot.com/2010/01/to-add-custom-date-field-in-custom.html

Every

Answer 1

Be sure, when you save date you do some like this

$dt = $this->getResource()->formatDate(time());
$this->setData('created_at', $dt); // current model

Then for getting correct timezone date use some like this

$dt = $this->getData('created_at');
$time = $this->_getResource()->mktime($dt);
if ($time) {
    $dt = Mage::app()->getLocale()->date($time, null, null, true);
}