SL Baur <steve@beopen.com> writes in pgsql-general@postgresql.org:
> I just did and it doesn't work.
Oops. I didn't check carefully enough. Sorry.
> steve=# set timezone='US/Pacific';
That's incorrect syntax, it appears. Setting the timezone as `PST8PDT'
or `:US/Pacific' works.
To answer the original question, GMT is named `GMT0' on Tru64.
steve=# set timezone='GMT0';
SET VARIABLE
steve=# select now();
now
------------------------
2000-05-24 07:04:37+00
(1 row)