Bug#630369: Timezone for Havana Cuba is not right

[Mauricio López <mlopezqc@gmail.com>]

Package: tzdata
Version: 2011c-0squeeze1

When I choose my timezone, America->Havana it is set as following

Current default time zone: 'America/Havana'
Local time is now:      Mon Jun 13 09:37:48 CDT 2011.
Universal Time is now:  Mon Jun 13 13:37:48 UTC 2011.

so, it is set Central Daylight Time (CDT) -0500, but we actually are in
Eastern Daylight Time (EDT) -0400 right now.

It is understandable, because Cuba Daylight Time have the same letters
and it's prone to confusion.

Consult the following to have an accurate information about this issue.

http://www.timeanddate.com/library/abbreviations/timezones/caribbean/

I'm using Debian GNU/Linux 6.0 kernel 2.6.32-5-686

Regards
Mauricio