[Bug 1325949] [NEW] Ubuntu 12.04 GMT timezone, + and - reversed?

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Looks like GMT[+-}<number> timezones have signs swapped.

My local timezone is Europe/Tallinn

When timezone is set to "Europe/Tallinn", everything is ok:
# dpkg-reconfigure tzdata -> Europe/Tallinn
# date
Tue Jun  3 14:34:21 EEST 2014

# date +%z
+0300

# date -u
Tue Jun  3 11:34:59 UTC 2014

I need to set timezone to GMT+2, to avoid dailight savings time.
When I set timezone to "GMT+2", things fall apart. Timezone is shown GMT+2/GMT-2. Clock is set to GMT-2.
# dpkg-reconfigure tzdata -> Etc/GMT+2

# date
Tue Jun  3 09:36:21 GMT+2 2014

# date +%z
-0200

# date -u
Tue Jun  3 11:37:43 UTC 2014

When I set timezone to "GMT-2", then it's turned around. Timezone is shown GMT-2/GMT+2. Clock is set to GMT+2.
#dpkg-reconfigure tzdata -> Etc/GMT-2

# date
Tue Jun  3 13:39:35 GMT-2 2014

# date +%z
+0200

# date -u
Tue Jun  3 11:39:56 UTC 2014

# lsb_release -rd
Description:    Ubuntu 12.04.4 LTS
Release:        12.04

# apt-cache policy tzdata
tzdata:
  Installed: 2014c-0ubuntu0.12.04
  Candidate: 2014c-0ubuntu0.12.04
  Version table:
 *** 2014c-0ubuntu0.12.04 0
        500 http://ee.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     2012e-0ubuntu0.12.04.1 0
        500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
     2012b-1 0
        500 http://ee.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

# apt-get update
# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

** Affects: tzdata (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
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Ubuntu 12.04 GMT timezone, + and - reversed?
https://bugs.launchpad.net/bugs/1325949
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