date/time conversions

[Stacy Mader]

Can Oracle convert date/time values such as
'03-NOV-2001 15:50' to GMT (or UTC) which for
me is -11 hours from my local time?

I thought I could do this by:

select to_char(date_occurred,'DD-MON-YYYY HH24:MI', 'GMT') from report

but I got an invalid NLS parameter error...


Thanks in advance,
        Stacy.