DateDjango时区中的感知对象

Question

我很难理解如何在django数据库中使用datetime对象。在

我将datetime.now()存储在DateTimeField中，但无法以可读的方式显示它。当前显示UTC时间。在

我应该用datetime字段存储时区，还是应该在查询和模板视图期间始终将其转换为时区？在

这太复杂了，我一定是做错了。在

如果是这样的话，我如何在模板中显示太平洋时区时间？在

谢谢。在

<tbody>
  {% for session in session_list %}
      <tr></tr><td>{{session.date}}</td><td>{{session.email}}</td><td>{{session.userData}}</td></tr>
  {% endfor %}

</tbody>

Answer 1

*）您可以使用templates标记启用或禁用aware datetime对象的转换：

{% load tz %}

{% localtime on %}
    {{ value }}
{% endlocaltime %}

{% localtime off %}
    {{ value }}
{% endlocaltime %}

*）在setting.py中，可以配置TIME_ZONE和{}

以UTC时间存储datetime很好（以下引自Django网站）：

it’s still good practice to store data in UTC in your database. The main reason is Daylight Saving Time (DST). Many countries have a system of DST, where clocks are moved forward in spring and backward in autumn. If you’re working in local time, you’re likely to encounter errors twice a year, when the transitions happen. (The pytz documentation discusses these issues in greater detail.) This probably doesn’t matter for your blog, but it’s a problem if you over-bill or under-bill your customers by one hour, twice a year, every year. The solution to this problem is to use UTC in the code and use local time only when interacting with end users.

阅读更多official Django Site