Java描述日期和时间的方法使用传统的Date命令或者Java的一些子库。不管它的名字是什么，日期的类并没有普通意义上的日期的概念（日，月，年等等）技术上讲，它仅仅是从1970年1月1日 00:00:00 GMT开始百万分之一秒的累加的一个结果。尽管这些关于日期的类有各种各样的处理日期的方法，这都是不够的。

-Java date and time to describe the methods of the Date command to use traditional Java or a number of sub-Library. No matter what is its name, the date of the class and not the ordinary meaning of the concept of date (day, month, year, etc.) Technically, it is only from January 1, 1970 00:00:00 GMT the beginning of millions of per second a result of the cumulative. Although these on the date of the class there are various ways to deal with the date, this is not enough.