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Java Standard Edition (SE)

Java Date Time APIs

Java Date-Time Packages

The Date-Time APIs, introduced in JDK 8, are a set of packages that model the most important aspects of date and time. The core classes in the java.time package use the calendar system defined in ISO-8601 (based on the Gregorian calendar system) as the default calendar. Other non-ISO calendar systems can be represented using the java.time.chrono package and several predefined chronologies, such as Hijrah and Thai Buddhist are provided.

API Specification

  • java.time - Classes for date, time, date and time combined, time zones, instants, duration, and clocks.
  • java.time.chrono - API for representing calendar systems other than ISO-8601. Several predefined chronologies are provided and you can also define your own chronology.
  • java.time.format - Classes for formatting and parsing dates and time.
  • java.time.temporal - Extended API, primarily for framework and library writers, allowing interoperations between the date and time classes, querying, and adjustment. Fields and units are defined in this package.
  • - Classes that support time zones, offsets from time zones, and time zone rules.
  • JSR 310: Date and Time API

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