DBMS_JOB Jobs Not Starting in oracle 9i

Question

i have a job in oracle 9i for windows 2003 standar edition; however it don't have error but dont execute automatic but manual execute is good;
DECLARE
X NUMBER;
BEGIN
SYS.DBMS_JOB.SUBMIT
( job => X
,what => 'PU_P_DIARIO;'
,next_date => to_date('11/04/2007 07:00:00','dd/mm/yyyy hh24:mi:ss')
,interval => 'TRUNC(SYSDATE + 1) + 7/24'
,no_parse => TRUE
SYS.DBMS_OUTPUT.PUT_LINE('Job Number is: ' || to_char(x));
END;
commit;

Answer 1

i execute manualy in at 11-04-2007 10:19 and the next time should be at 10-04-2007 11:00 but it dont execute automatic then at he 11:am dont change the time in the script (the time is the same)
scrip executed at 10:55
JOB, LAST_DATE, NEXT_DATE,NEXT_SEC,FAILURES,BROKEN,DESCRIPTION
4, 10/4/2007 10:19:06 AM, 10/4/2007 11:00:00 AM,11:00:00,0,N,RRHH_PPC.PU_P_DIARIO;
scrip executed at the 11:06
JOB,LAST_DATE,NEXT_DATE,NEXT_SEC,FAILURES,BROKEN,DESCRIPTION
4,10/4/2007 10:19:06 AM,10/4/2007 11:00:00 AM,11:00:00,0,N,RRHH_PPC.PU_P_DIARIO;