SQL>
SQL> --SYS_EXTRACT_UTC(x): convert the TIMESTAMP WITH TIMEZONE x to a TIMESTAMP containing the date and time in UTC
SQL>
SQL> SELECT SYS_EXTRACT_UTC(TIMESTAMP '2005-05-13 19:15:26 PST') FROM dual;
SYS_EXTRACT_UTC(TIMESTAMP'2005-05-1319:15:26PST')
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14-MAY-05 02.15.26.000000000 AM
SQL>
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