Find out how the Java Date and Time API addresses the need for a more robust date and time infrastructure in Java SE, then familiarize yourself with the java.time classes you're most likely to use ...

Java reckons time in milliseconds before or after the start of January 1, 1970. The Date class’s constructor Date() returns an object that represents the moment the object was created.

ThreeTen, the reference implementation of JSR 310 Date and Time API, is now included in JDK 8 build 75. The Java Time API for JDK 8 is under the package java.time, moving away from the javax.time ...