To add custom date field in custom module of admin panel

You can see the below code to add start date and end date field in admin custom module(Which is created using module creator).
Create two fields “start_date” and “end_date” in database table of your custom module.
$dateFormatIso = Mage::app()->getLocale() ->getDateFormat(Mage_Core_Model_Locale::FORMAT_TYPE_SHORT);
$fieldset->addField(’start_date’, ‘date’, array(
‘label’ => Mage::helper(‘banner’)->__(‘Start Date’),
‘title’ => Mage::helper(‘banner’)->__(‘Start Date’),
‘name’ => ’start_date’,
‘image’ => $this->getSkinUrl(‘images/grid-cal.gif’),
‘format’ => $dateFormatIso,
‘value’ => ’start_date’,
//’required’ => true,
));
$fieldset->addField(‘end_date’, ‘date’, array(
‘label’ => Mage::helper(‘banner’)->__(‘End Date’),
‘title’ => Mage::helper(‘banner’)->__(‘End Date’),
‘name’ => ‘end_date’,
‘image’ => $this->getSkinUrl(‘images/grid-cal.gif’),
‘format’ => $dateFormatIso,
‘value’ => ‘end_date’,
//’required’ => true,
));
Copy and paste the above code to your custom_module/block/adminhtml/custom_module/Edit/Tab/Form.php file
and than open controller of the same module
Path :: custom_module/controllers/adminhtml/custommoduleController.php
Add below lines before $model->save() to save dates in
function saveAction().
if($data['start_date'] != NULL )
{
$date = Mage::app()->getLocale()->date($data['start_date'], Zend_Date::DATE_SHORT);
$model->setStartDate($date->toString(‘YYYY-MM-dd HH:mm:ss’));
}
if($data['end_date'] != NULL)
{
$date1 = Mage::app()->getLocale()->date($data['end_date'], Zend_Date::DATE_SHORT);
$model->setEndDate($date1->toString(‘YYYY-MM-dd HH:mm:ss’));
}