Unix Seconds to Oracle Date...HELP !!!

Hi All
We got a Oracle (8.1.7) database and I am trying to load some data but one of the column is in Unix time format(seconds since 01-01-1970) and I am trying to convert it to Oracle Date & time (dd-mon-yyyy, hh24:mi:ss) in CST time zone.
I am using this formula:
select to_char(new_time(to_date('01011970', 'ddmmyyyy') + 1/24/60/60 * 1090831602, 'GMT', 'CST'), 'dd-Mon-yyyy hh24:mi:ss') "Seconds to Date" from dual;
But it seems to me that I am getting incorrect results.
Could someone please help.
Cheers
Amit

hmmm, this is still poor support! new_time does not "know" if we are in winter or in summer.
select new_time(sysdate, 'GMT', 'EST'), new_time(sysdate + 180, 'GMT', 'EST') from dual
NEW_TIME(SYSDATE,'G NEW_TIME(SYSDATE+18
04.08.2004 05:31:59 31.01.2005 05:31:59
select
FROM_TZ( CAST(SYSDATE AS TIMESTAMP),'GMT') at time zone 'Europe/Zurich',
FROM_TZ( CAST(SYSDATE+180 AS TIMESTAMP),'GMT') at time zone 'Europe/Zurich'
from dual;
FROM_TZ(CAST(SYSDATEASTIMESTAMP),'GMT')ATT FROM_TZ(CAST(SYSDATE+180ASTIMESTAMP),'GMT'
04-AUG-04 12.28.15.000000 PM EUROPE/ZURICH 31-JAN-05 11.28.15.000000 AM EUROPE/ZURICH

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Unix Seconds to Oracle Date...HELP !!!

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