title: Get Timezone from City in Python/Django
body: <p>Using <code>pytz</code>, I am able to get a list of timezones like so:</p>
  
  <pre><code>&gt;&gt;&gt; from pytz import country_timezones
  &gt;&gt;&gt; print(' '.join(country_timezones('ch')))
  Europe/Zurich
  &gt;&gt;&gt; print(' '.join(country_timezones('CH')))
  Europe/Zurich
  </code></pre>
  
  <p>Given that I am getting both Country and City fields from the user, how can I go about determining the timezone for the city?</p>