The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available.
See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases.
See JDK Release Notes for information about new features, enhancements, and removed or deprecated options for all JDK releases.
The java.time package contains many classes that your programs can use to represent time and date. This is a very rich API. The key entry points for ISO-based dates are as follows:
Other non-ISO calendar systems can be represented using the java.time.chrono package. This package is beyond the scope of this tutorial, though the Non-ISO Date Conversion page provides information about converting an ISO-based date to another calendar system.
The Date Time API was developed as part of the Java community process under the designation of JSR 310. For more information, see JSR 310: Date and Time API.