Time.zone.now.to_date 是否等同于 Date.today? [英] Is Time.zone.now.to_date equivalent to Date.today?

问题描述

Time.zone.now.to_date 是否等同于 Date.today?

另一种说法:Time.zone.now.to_date == Date.today 总是 true 吗?

Another way to put it: will Time.zone.now.to_date == Date.today always be true?

如果不是，那么在应用程序时区中获取对应于now"的 Date 对象的最佳方法是什么?

If not, what's the best way to get a Date object corresponding to "now" in the application time zone?

推荐答案

它们并不总是相同的.Time.zone.now.to_date 将使用应用程序时区，而 Date.today 将使用服务器时区.因此，如果两者位于不同的日期，那么它们将是不同的.我的控制台的一个例子:

They are not always the same. Time.zone.now.to_date will use the applications time zone, while Date.today will use the servers time zone. So if the two lie on different dates then they will be different. An example from my console:

ruby-1.9.2-p290 :036 > Time.zone = "Sydney"
 => "Sydney" 
ruby-1.9.2-p290 :037 > Time.zone.now.to_date
 => Wed, 21 Sep 2011 
ruby-1.9.2-p290 :038 > Date.today
 => Tue, 20 Sep 2011 

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