Java Date and Time

8.5

5.0

Joda-Time

5.0

7.1

iCal4j

4.8

4.7

ThreeTenBP

4.1

7.1

Time4J

4.1

6.9

ThreeTen-Extra

2.1

0.0

Almanac Converter

6 Date and Time libraries and projects

Joda-Time

8.5 5.0 L2 Java

Joda-Time is the widely used replacement for the Java date and time classes prior to Java SE 8.
iCal4j

5.0 7.1 L3 Java

A Java library for parsing and building iCalendar data models

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ThreeTenBP

4.8 4.7 L1 Java

Backport of functionality based on JSR-310 to Java SE 6 and 7. This is NOT an implementation of JSR-310.
Time4J

4.1 7.1 L1 Java

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

4.1 6.9 Java

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

2.1 0.0 L3 Java

A Java-based calendar converter

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