Hi GIJOE san
The news of the following posted date is not displayed in a news archive of Bulletin.
(year)-(month)-1 0:00:00
(year)-(month)-(end of the month) 23:59:59
patch:
(XOOPS_TRUST_PATH)/class/bulletin.php L253-254
$criteria[] = "published >= $monstart4sql";
$criteria[] = "published <= $monend4sql";