[tz] Austin Group POSIX TZ changes and Time Zone Taxonomy

[Brian Inglis]

Hi folks,

Saw that the Austin Group is proposing to support *some* time zones in POSIX 
issue 8; see:

	https://www.austingroupbugs.net/view.php?id=1619    TZ=Area/Location

Some of the zones could be categorized as they have proposed, but that uses 
terminology that I don't think we would approve of, leaves a lot of zones in the 
tzdb unsupported and unaddressed, and omits a whole reality which I have 
attempted to categorize in the attached.

Perhaps some here would like to come up with better facts, names, terminology, 
and wording, and propose an update to the Austin Group, that better reflects 
what exists, and what they are meant to be standardizing?

If they are going to standardize this, they should either do it properly, or 
drop it entirely, maintaining the status quo, as they are not going to be 
helping with their inaccurate terminology, and limited support!

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer     but when there is no more to cut
                                 -- Antoine de Saint-Exupéry
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Time Zone Data/Zone Info Taxonomy

Correct:

    https://www.austingroupbugs.net/view.php?id=1619    TZ=Area/Location

Leapsecond-Accounting-Prefix:	optional

posix/	UTC ignoring leapseconds
right/	TAI + 10s

Custom:

localtime

Traditional:

CET
CST6CDT
EET
EST
EST5EDT
GMT
GMT+0
GMT0
GMT-0
HST
MET
MST
MST7MDT
PRC
PST8PDT
ROC
ROK
UCT
UTC
WET

Legacy:

Cuba
Egypt
Eire
Factory
GB
GB-Eire
Greenwich
Hongkong
Iceland
Iran
Israel
Jamaica
Japan
Kwajalein
Libya
Navajo
NZ
NZ-CHAT
Poland
Portugal
Singapore
Turkey
Universal
W-SU
Zulu

Etc-invariant:

Etc/GMT-14
Etc/GMT-13
Etc/GMT-12
Etc/GMT-11
Etc/GMT-10
Etc/GMT-9
Etc/GMT-8
Etc/GMT-7
Etc/GMT-6
Etc/GMT-5
Etc/GMT-4
Etc/GMT-3
Etc/GMT-2
Etc/GMT-1
Etc/GMT-0
Etc/GMT
Etc/GMT0
Etc/Greenwich
Etc/UCT
Etc/Universal
Etc/UTC
Etc/Zulu
Etc/GMT+0
Etc/GMT+1
Etc/GMT+2
Etc/GMT+3
Etc/GMT+4
Etc/GMT+5
Etc/GMT+6
Etc/GMT+7
Etc/GMT+8
Etc/GMT+9
Etc/GMT+10
Etc/GMT+11
Etc/GMT+12

Legacy-Americas-Multi-Zone-Country-Regions:

Brazil/...
Canada/...
Chile/...
Mexico/...
US/...

Continent/Ocean-Population-Centre:

Africa/...
America/...
Antarctica/...
Arctic/...
Asia/...
Atlantic/...
Australia/...
Europe/...
Indian/...
Pacific/...

Americas-Territory-Population-Centre:

America/Argentina/...
America/Indiana/...
America/Kentucky/...
America/North_Dakota/...