To have the Server Date and Time,
Add this line in your details.php
$current_time = time();
Befor this
include(ROOT_PATH.'includes/email.php');
$site_email = new Email();
$site_email->set_to($recipient_email);
$site_email->set_from($config['site_email'], $config['site_name']);
$site_email->set_subject("Comment Posted");
$site_email->set_subject($lang['send_comment_emailsubject']);
$site_email->register_vars(array(
"user_name" => $image_row['user_name'],
"recipient_name" => $recipient_name,
"image_name" => $image_row['image_name'],
"comment_date" => format_date($config['date_format']." ".$config['time_format'], $current_time),
"site_name" => $config['site_name'],
"image_url" => $image_url,
));
$site_email->set_body("comment_email", $config['language_dir']);
$site_email->send_email();
So it should look like
$current_time = time();
include(ROOT_PATH.'includes/email.php');
$site_email = new Email();
$site_email->set_to($recipient_email);
$site_email->set_from($config['site_email'], $config['site_name']);
$site_email->set_subject("Comment Posted");
$site_email->set_subject($lang['send_comment_emailsubject']);
$site_email->register_vars(array(
"user_name" => $image_row['user_name'],
"recipient_name" => $recipient_name,
"image_name" => $image_row['image_name'],
"comment_date" => format_date($config['date_format']." ".$config['time_format'], $current_time),
"site_name" => $config['site_name'],
"image_url" => $image_url,
));
$site_email->set_body("comment_email", $config['language_dir']);
$site_email->send_email();
Good Luck