DECLARE
  X NUMBER;
BEGIN
  SYS.DBMS_JOB.SUBMIT
    ( job       => X 
     ,what      => 'BEGIN INVS_RIM_DATA_LOAD(''01A'',''RIMADMIN'',TRUNC(SYSDATE)); END;'
     ,next_date => to_date('15/08/2011 23:09:00','dd/mm/yyyy hh24:mi:ss')
     ,interval  => 'TRUNC(SYSDATE+1)+23.15/24'
     ,no_parse  => TRUE
    );
  SYS.DBMS_OUTPUT.PUT_LINE('Job Number is: ' || to_char(x));
END;
/
commit;

User_Jobs
Last_date : 13-Aug-2011 02:30:14 AM
Next_Date : 14-Aug-2011 11:09:00 PM

SQL> select sysdate from dual;       

SYSDATE
-------------------
2011-08-15 16:36:40

SQL> select TRUNC(SYSDATE+1)+23.15/24 from dual;

TRUNC(SYSDATE+1)+23
-------------------
2011-08-16 23:09:00