"Manchenahalli, Raghunandan (STSD)" <raghunandan(dot)manchenahalli(at)hp(dot)com> writes:
> We are observing an issue where postgres does not like UTC0 as a
> timezone setting on some Unix systems.
If you're seeing system-dependent behavior at all, you must be using PG 7.x.
8.0 and later should accept this consistently.
regards, tom lane