Time change from Chicago to Los Angeles(Central to Pacific)
SQL>
SQL> -- Time change from Chicago to Los Angeles.
SQL> SELECT TO_CHAR(NEW_TIME(TO_DATE('060297 01:00:00 AM', 'MMDDYY HH:MI:SS AM'), 'CDT','PDT'), 'DD-MON-YY HH:MI:SS AM') "Central to Pacific" from DUAL;
Central to Pacific
---------------------
01-JUN-97 11:00:00 PM