QA output created by 634
time zone from archive ...
Note: timezone set to local timezone of host "oasis.reading.sgi.com" from archive

metric:    hinv.ncpu
archive:   src/gmt-boring
host:      oasis.reading.sgi.com
start:     Wed May 30 03:54:49 2001
end:       Wed May 30 03:55:03 2001
semantics: discrete instantaneous value
units:     none
samples:   3
interval:  5.00 sec
03:54:49.319  No values available
03:54:54.319          2
03:54:59.319          2

GMT via -Z ...
Note: timezone set to "TZ=GMT"

metric:    hinv.ncpu
archive:   src/gmt-boring
host:      oasis.reading.sgi.com
start:     Wed May 30 02:54:49 2001
end:       Wed May 30 02:55:03 2001
semantics: discrete instantaneous value
units:     none
samples:   3
interval:  5.00 sec
02:54:49.319  No values available
02:54:54.319          2
02:54:59.319          2

GMT via default local timezone ...

metric:    hinv.ncpu
archive:   src/gmt-boring
host:      oasis.reading.sgi.com
start:     Wed May 30 02:54:49 2001
end:       Wed May 30 02:55:03 2001
semantics: discrete instantaneous value
units:     none
samples:   3
interval:  5.00 sec
02:54:49.319  No values available
02:54:54.319          2
02:54:59.319          2

Default timezone ... should be different to -z ...
Different, as expected