Java 8的新Java日期时间API是否适用于DST？ [英] Does Java 8's new Java Date Time API take care of DST?

问题描述

我正在考虑使用新的 java 8 Date Time API 。我google了一下，发现jodaTime是java的好选择，但仍然有兴趣了解这个新的API是如何工作的。

I am thinking of using the new java 8 Date Time API. I googled a bit and found jodaTime as good choice for java but still kind of interested to see how this new API works.

我正在将所有时间都存储在数据存储区中的UTC值，并将根据用户的时区将其转换为本地时区的具体值。我可以找到许多文章展示如何使用新的Java Date Time API。不过我不确定API是否会照顾DST的变化？
或者我们有什么更好的处理方式吗？

I am storing all time in UTC values in my datastore and will be converting them to Local Time Zone specific value based on user's timezone. I can find many articles showing how to use new Java Date Time API. However I am not sure if the API will take care of DST changes ? Or do we have any better way of handling Date ?

我正在学习新的Date API，所以想到听到你对处理DateTime和

I am just learning the new Date API , so thought of hearing your thoughts on handling the DateTime and displaying it on the basis of Users TimeZone.

推荐答案

这取决于你使用哪个类：

It depends on which class you use:

• Instant 是全球时间线（UTC）上的瞬时点，与时区无关。


• LocalDate 和 LocalDateTime 没有时区的概念， c code当然可以给你正确的时间。


• OffsetDateTime 有一个时区，但不支持夏令时。


• ZonedDateTime 具有全时区支持。 >
  

• Instant is an instantaneous point on the global time-line (UTC), and is unrelated to time-zone.
• LocalDate and LocalDateTime have no concept of time-zone, but calling now() will of course give you your correct time.
• OffsetDateTime has a time-zone, but doesn't support Daylight Savings Time.
• ZonedDateTime has full time-zone support.

他们之间的转换通常需要一个时区，所以要回答你的问题：

Converting between them usually requires a time-zone, so to answer your question:

    是的，Java 8日期/时间可以照顾DST，

    Yes, Java 8 Date/Time can take care of DST, if you use it right.

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