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js-joda has a lightweight footprint, only 43 kB minified and compressed, no third party dependencies.
js-joda supports ECMAScript 5 browsers down to IE9.
js-joda is a port of the threeten backport, which is the base for JSR-310 implementation of the Java SE 8 java.time package. Threeten is inspired by Joda-Time, having similar concepts and the same author.
js-joda is robust and stable. We ported more then 1700 test-cases with a lots of test-permutations from the threetenbp project. We run the automated karma test-suite against Firefox, Chrome, Node and phantomjs.
Date object, providing syntactic sugar. The native
Date object always consist of a date, time and a timezone part. In contrast, js-joda is a standalone date and time implementation.
The API has a domain-driven design with classes for each of the different use cases, like
Period. For example,
LocalDate allows you to handle dates without times (like birthdays or holidays) in a clean and error-safe way, especially if these dates are persisted to an external server.
js-joda is immutable. Immutability aligns well with pure functions and with the architecture of frameworks like React and Flux.
LocalDate represents a date without a time and timezone in the ISO-8601 calendar system, such as 2007-12-24.
LocalTime represents a time without timezone in the ISO-8601 calendar system such as '11:55:00'.
LocalDateTime is a description of the date (LocalDate), as used for birthdays, combined with the local time (LocalTime) as seen on a wall clock.
ZonedDateTime is a date-time with a timezone in the ISO-8601 calendar system, such as 2007-12-24T16:15:30+01:00 UTC+01:00.
Instant is an instantaneous point on the time-line measured from the epoch of 1970-01-01T00:00:00Z in epoch-seconds and nanosecond-of-second.
Duration is a time-based amount of time, such as '34.5 seconds'.
Period is a date-based amount of time in the ISO-8601 calendar system, such as '2 years, 3 months and 4 days'.
Year represents a year in the ISO-8601 calendar system, such as '2016'.
YearMonth represents a year and a month in the ISO-8601 calendar system, such as '2016-01'.
Month represents a month-of-year in the ISO-8601 calendar system, such as 'July'.
MonthDay represents a month-day in the ISO-8601 calendar system, such as '--12-03'. Could be used to represent e.g. Birthdays.
DayOfWeek represents a day-of-week in the ISO-8601 calendar system, such as 'Tuesday'.
Install joda using npm
npm install js-joda
Then require it to any module
var LocalDate = require('js-joda').LocalDate; var d = LocalDate.parse('2012-12-24').atStartOfDay().plusMonths(2); // 2013-02-24T00:00:00
To use js-joda from a browser, download either
dist/js-joda.js (with sourcemaps for development). Then add it as a script tag to your page
<script src="js-joda.min.js"></script> <script> var LocalDate = JSJoda.LocalDate; var d = LocalDate.parse('2012-12-24').atStartOfDay().plusMonths(2); // 2013-02-24T00:00:00 </script>
Periodconverting to and from ISO8601.
ZonedDateTime(without support for loading iana timezone databases) currently supports only fixed offsets like UTC or UTC+02:00 and the system default time zone.
see the plugin js-joda-locale
Contributions are always welcome. Before contributing please read the code of conduct & search the issue tracker. We use GitHub issues. Your issue may have already been discussed or fixed. To contribute, fork js-joda, commit your changes, & send a pull request.
By contributing to js-joda, you agree that your contributions will be licensed under its BSD license.
Note that only pull requests and issues that match the threeten backport API will be considered. Additional requested features will be rejected.
Joda-Timeis the base for JSR-310 that became part of Java SE 8 in the java.time package. JSR-310 is a new implementation with an API 'inspired by Joda-Time' but improves on some design flaws (see http://blog.joda.org/2009/11/why-jsr-310-isn-joda-time_4941.html)
Joda-Timeis under Apache 2.0 licence.
js-joda is released under the BSD 3-clause license.
Our implementation reference base ThreeTen-Backport (http://www.threeten.org/threetenbp/) is also released under the BSD 3-clause license
OpenJDK is under GNU GPL+linking exception.
The author of
Joda-Time and the lead architect of the JSR-310 is Stephen Colebourne.