public static function loadMailSchedules()
    {
        // sendon's value is 01:15:00

        // (`interval` + `lastmail`) <= '".time()."' equals FALSE for some reason

        self::$SCHEDULES = array();
        $select = "SELECT * FROM
                                `mail_schedules`
                        WHERE
                                UNIX_TIMESTAMP(CONCAT('".date("Y-m-d")."', ' ', `sendon`)) <= ".strtotime(date("Y-m-d H:i:s"))."
                            AND
                                (`interval` + `lastmail`) <= '".time()."'
                            AND
                                `is_active` = 1";
        echo $select;
        DatabaseR::query($select);
        while($row = DatabaseR::fetchObject())
        {
            $TIME = date("H:i:s");

            // this equals TRUE
            var_dump(strtotime("01:15:00") < strtotime($TIME));

            if(strtotime($row->sendon) < strtotime($TIME)) self::$SCHEDULES[$row->id] = $row;
        }
        Database::query("UPDATE `mail_schedules` SET `lastmail`='".time()."' WHERE `id` IN ('".implode("','", array_keys(self::$SCHEDULES))."') ");
    }