为什么LocalDateTime没有区域？

Question

我不明白这一点-根据定义，LocalDateTime在我的默认时区中-对吗？那么，为什么我需要提供一个从LocalDateTime转换为ZonedDateTime的区域？

Answer 1

A date-time without a time-zone in the ISO-8601 calendar system, such as 2007-12-03T10:15:30.

因为它的命名不是特别好。只是一个没有时区的DateTime和一个“时钟”时间，如下所示： This class does not store or represent a time-zone. Instead, it is a description of the date, as used for birthdays, combined with the local time as seen on a wall clock. It cannot represent an instant on the time-line without additional information such as an offset or time-zone.

这样，要转换为ZonedDateTime，您需要提供上下文。

来源：https://docs.oracle.com/javase/8/docs/api/java/time/LocalDateTime.html