Rails，如何在正确的时区内获取日期时间？-Rails,howtogethoursofadatetimeinthecorrecttimezone?

I have an offer model. and when I access it from the command line, it is displayed in the following format:

我有报价模型。当我从命令行访问它时，它以下列格式显示：

1.9.3p392 :058 > o = Offer.last
 => # 

In this output, valid_from and valid_until are formatted as I would expect. however, when I access them directly, I get something different:

在此输出中，valid_from和valid_until的格式符合我的预期。但是，当我直接访问它们时，我会得到一些不同的东西：

1.9.3p392 :059 > o.valid_from
   => Fri, 12 Apr 2013 05:00:00 EDT -04:00 

The issue comes with this function I have inside of app/models/offer_model.rb :

问题来自app / models / offer_model.rb中的这个函数：

  def start_hour
    self.valid_from.strftime('%l').to_i unless self.valid_from.nil?
  end

When I run this command, with the model above, the output is 5. I would expect it to return 9 in this case. How can I get start_hour to return the hour adjusted for the time zone in this case?

当我运行此命令时，使用上面的模型，输出为5.我希望它在这种情况下返回9。在这种情况下，如何让start_hour返回为时区调整的小时数？

1 个解决方案