[Sugar-devel] [PATCH] revise timezone list, #2195

[Sascha Silbe]

Excerpts from James Cameron's message of Mon Mar 21 04:09:27 +0100 2011:
> - remove GMT offsets as useless, since GMT tracks UTC and this is not
>   expected to change,
> 
> - fix #2195 by translating from ISO 8601 to POSIX.1 format, by
>   reversing the sign,
> 
> - increase UTC timezone coverage for Kiribati and Tonga.

Thanks for the patch! It's a good start, but unfortunately not enough.
POSIX defines TZ as "std offset dst offset, rule" [1], with std and dst
being the name of the _local_ time zone (for standard resp. daylight
savings time). Even after your patch Sugar always claims the local time
zone to be UTC which is clearly incorrect (for non-zero offsets).

In the long term I'd like to get rid of this Sugar-specific control
panel and recycle something from Gnome.

Short term an option might be to parse the /usr/share/zoneinfo/zone.tab
file. Probably too invasive for 0.92.x, though (but OLPC can cherry-pick
from master).

Sascha

[1] http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html#tag_08_03
-- 
http://sascha.silbe.org/
http://www.infra-silbe.de/
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