On Thu, Mar 3, 2011 at 5:10 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Josh Berkus <josh(at)postgresql(dot)org> writes:
>> echo $TZ returns nothing. We've checked several Ubuntu systems, and it
>> seems that Ubuntu does not set $TZ.
>
> Red Hat doesn't either; I think this is a general habit on Linux
> distros.
If you are using glibc, this is expected/normal.
http://www.gnu.org/s/libc/manual/html_node/TZ-Variable.html
--
Jon