Joda-Time JAVA framework as a third party, date handling is very simple, the official website address: https://www.joda.org/joda-time/
Joda-Time makes time and date values become easier to manage, operate and understand. In fact, ease of use is the primary design goals of Joda. Other goals include scalability, complete feature set and support for multiple calendar system.
Joda is one hundred percent with the JDK and interoperable, so you do not need to replace all the Java code, only need to replace that part of the code execution date / time calculations.
We can use it to JDK Date and Calendar classes completely replaced, but still be able to provide well integrated.
Specific Use: perfected. . .