title: Invalid Django TIME_ZONE
body: <p>Doing a recent build, I ran Django's syncdb, and I'm getting the error:</p>
  
  <pre><code>Traceback (most recent call last):
    File "manage.py", line 11, in &lt;module&gt;
      execute_manager(settings)
    File "/usr/lib/python2.6/site-packages/Django-1.3-py2.6.egg/django/core/management/__init__.py", line 438, in execute_manager
      utility.execute()
    File "/usr/lib/python2.6/site-packages/Django-1.3-py2.6.egg/django/core/management/__init__.py", line 379, in execute
      self.fetch_command(subcommand).run_from_argv(self.argv)
    File "/usr/lib/python2.6/site-packages/Django-1.3-py2.6.egg/django/core/management/__init__.py", line 252, in fetch_command
      app_name = get_commands()[subcommand]
    File "/usr/lib/python2.6/site-packages/Django-1.3-py2.6.egg/django/core/management/__init__.py", line 101, in get_commands
      apps = settings.INSTALLED_APPS
    File "/usr/lib/python2.6/site-packages/Django-1.3-py2.6.egg/django/utils/functional.py", line 276, in __getattr__
      self._setup()
    File "/usr/lib/python2.6/site-packages/Django-1.3-py2.6.egg/django/conf/__init__.py", line 42, in _setup
      self._wrapped = Settings(settings_module)
    File "/usr/lib/python2.6/site-packages/Django-1.3-py2.6.egg/django/conf/__init__.py", line 125, in __init__
      raise ValueError("Incorrect timezone setting: %s" % self.TIME_ZONE)
  ValueError: Incorrect timezone setting: America/New_York EST5EDT SystemV/EST5EDT US/Eastern
  </code></pre>
  
  <p>I haven't changed any of my core settings, so I don't know why I would suddenly be getting this error. The value in my settings.py file is <code>TIME_ZONE = 'America/New_York'</code>, which is a valid value according to <a href="http://en.wikipedia.org/wiki/List_of_tz_zones_by_name">this</a>. Why isn't Django accepting this value?</p>