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Joda-Time provides a quality replacement for the Java date and time classes. The design allows for multiple calendar systems, while still providing a simple API. The 'default' calendar is the ISO8601 standard which is used by XML. The Gregorian, Julian, Buddhist, Coptic, Ethiopic and Islamic systems are also included. Supporting classes include time zone, duration, format and parsing.

Joda-time is no longer in active development except to keep timezone data up to date. From Java SE 8 onwards, users are asked to migrate to java.time (JSR-310) - a core part of the JDK which replaces this project. For Android users, java.time is added in API 26+. Projects needing to support lower API levels can use the ThreeTenABP library.

As a flavour of Joda-Time, here's some example code:

public boolean isAfterPayDay(DateTime datetime) {
  if (datetime.getMonthOfYear() == 2) {   // February is month 2!!
    return datetime.getDayOfMonth() > 26;
  }
  return datetime.getDayOfMonth() > 28;
}

public Days daysToNewYear(LocalDate fromDate) {
  LocalDate newYear = fromDate.plusYears(1).withDayOfYear(1);
  return Days.daysBetween(fromDate, newYear);
}

public boolean isRentalOverdue(DateTime datetimeRented) {
  Period rentalPeriod = new Period().withDays(2).withHours(12);
  return datetimeRented.plus(rentalPeriod).isBeforeNow();
}

public String getBirthMonthText(LocalDate dateOfBirth) {
  return dateOfBirth.monthOfYear().getAsText(Locale.ENGLISH);
}

Joda-Time is licensed under the business-friendly Apache 2.0 licence.

Various documentation is available:

• The home page
• Two user guides - quick and full
• The Javadoc
• The FAQ list
• Information on downloading and installing Joda-Time including release notes

Release 2.12.7 is the current latest release. This release is considered stable and worthy of the 2.x tag. It depends on JDK 1.5 or later.

Available in the Maven Central repository

Maven configuration:

<dependency>
  <groupId>joda-time</groupId>
  <artifactId>joda-time</artifactId>
  <version>2.12.7</version>
</dependency>

Gradle configuration:

compile 'joda-time:joda-time:2.12.7'

Related projects at GitHub:

• https://github.com/JodaOrg/joda-time-hibernate
• https://github.com/JodaOrg/joda-time-jsptags
• https://github.com/JodaOrg/joda-time-i18n

Other related projects:

• https://www.joda.org/joda-time/related.html

Available as part of the Tidelift Subscription.

Joda and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use.

If you want the flexibility of open source and the confidence of commercial-grade software, this is for you.

Learn more

Please use Stack Overflow for general usage questions. GitHub issues and pull requests should be used when you want to help advance the project.

Any donations to support the project are accepted via OpenCollective.

To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure.

Joda-Time is developed using standard GitHub tools. A checkstyle file is available, and PRs must comply with it. The project can be built using Apache Maven, such as mvn clean install. Continuous Integration takes place using GitHub Actions. Units tests are written in JUnit and run as part of the build and continuous integration. Changes via PR must include appropiate test coverage.

Note that Joda-Time is considered to be a largely “finished” project. No major enhancements are planned. If using Java SE 8, please migrate to java.time (JSR-310).

• Update version (pom.xml, README.md, index.md, MANIFEST.MF, changes.xml)
• Commit and push
• Ensure on Java SE 8
• mvn clean deploy -Doss.repo -Dgpg.passphrase=""
• Website will be built and released by GitHub Actions123.