"Alexander Pivovarov" <apivovarov(at)gmail(dot)com> writes:
> # select '05:04 GMT+3'::time with time zone;
> timetz
> -------------
> 05:04:00-03
> (1 row)
This isn't a bug; it's expected. The "GMT+n" syntax is defined by a
different standard than the one we follow for timestamp output, and
the two standards don't agree about sign. It's unfortunate but there's
not a lot we can do about it.
regards, tom lane