Java Date and Time

Open-source Java projects categorized as Date and Time

Top 10 Java Date and Time Projects

  • Joda-Time

    Joda-Time is the widely used replacement for the Java date and time classes prior to Java SE 8.

  • Project mention: Don't use clj-time, use clojure.java-time instead | dev.to | 2024-01-10

    Not a big deal. That should be it, right? Not too soon! Turns out clj-time is a wrapper of Joda Time and the project's README says:

  • ThreeTen Android Backport

    An adaptation of the JSR-310 backport for Android.

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

    InfluxDB logo
  • CosmoCalendar

    πŸ“… CosmoCalendar is a fully customizable calendar with a wide variety of features and displaying modes. (by ApplikeySolutions)

  • iCal4j

    A Java library for parsing and building iCalendar data models

  • ThreeTenBP

    Backport of functionality based on JSR-310 to Java SE 6 and 7. This is NOT an implementation of JSR-310.

  • Time4J

    Advanced date, time and interval library for Java with sun/moon-astronomy and calendars like Chinese, Coptic, Ethiopian, French Republican, Hebrew, Hijri, Historic Christian, Indian National, Japanese, Julian, Korean, Minguo, Persian, Thai, Vietnamese

  • ThreeTen-Extra

    Provides additional date-time classes that complement those in JDK 8

  • Project mention: How to Effectively Test Time-Dependent Code: Unit and Spring-Based Strategies | /r/java | 2023-07-10

    The https://www.threeten.org/threeten-extra/ library also has a mutable Clock, along with other useful time-related utilities.

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

    WorkOS logo
  • PickerView

    πŸ•˜ Androidζ»šεŠ¨ι€‰ζ‹©ε™¨οΌˆηœεΈ‚εŒΊθ”εŠ¨ι€‰ζ‹©γ€ζ—₯ζœŸι€‰ζ‹©γ€ζ—Άι—΄ι€‰ζ‹©οΌ‰ (by duanhong169)

  • CustomizableCalendar

    CustomizableCalendar is a library that allows you to create your calendar, customizing UI and behaviour

  • RackMonthPicker

    android library dialog month picker

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

Java Date and Time related posts

Index

What are some of the best open-source Date and Time projects in Java? This list will help you:

Project Stars
1 Joda-Time 4,969
2 ThreeTen Android Backport 3,537
3 CosmoCalendar 1,621
4 iCal4j 718
5 ThreeTenBP 546
6 Time4J 420
7 ThreeTen-Extra 387
8 PickerView 252
9 CustomizableCalendar 217
10 RackMonthPicker 41

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