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The Zmanim library is an API for a specialized calendar that can calculate different astronomicaltimes including sunrise and sunset and Jewishzmanim or religious times for prayers and otherJewish religious duties.

These classes extend GregorianCalendar and can thereforeuse the standard Calendar functionality to change dates etc. For non religious astronomical / solarcalculations use theAstronomicalCalendar.

The ZmanimCalendar contains the most common zmanim or religious time calculations. For a much moreextensive list ofzmanim use the ComplexZmanimCalendar.This class contains the main functionality of the Zmanim library.

For a basic set of instructions on the use of the API, seeHow to Use the Zmanim API,zmanim code samples and theKosherJava FAQ. See theKosherJava Zmanim site for additional information.

To add KosherJava as a dependency to your project, add the following dependency:

Add the following to yourpom.xml file:

<dependency>  <groupId>com.kosherjava</groupId>  <artifactId>zmanim</artifactId>  <version>2.5.0</version></dependency>

Add the following to yourbuild.gradle file:

implementationgroup:'com.kosherjava',name:'zmanim',version:'2.5.0'

Or if you havebuild.gradle.kts file:

implementation("com.kosherjava:zmanim:2.5.0")

The library is released under theLGPL 2.1 license.

The KosherJava Zmanim API has been ported to:

• Swift -https://github.com/Elyahu41/KosherSwift &https://github.com/DanielSmith1239/KosherSwift
• Objective-C -https://github.com/MosheBerman/KosherCocoa
• .NET -https://github.com/Yitzchok/Zmanim
• TypeScript -https://github.com/BehindTheMath/KosherZmanim
• JavaScript -https://github.com/yparitcher/zmanJS
• Kotlin -https://github.com/Sternbach-Software/KosherKotlin
• Ruby -https://github.com/pinnymz/ruby-zmanim
• Scala -https://github.com/nafg/jewish-date
• C -https://github.com/yparitcher/libzmanim
• Python -https://github.com/pinnymz/python-zmanim &https://pypi.org/project/zmanim/
• PHP -https://github.com/zachweix/PhpZmanim/
• Dart / Flutter -https://github.com/yakir8/kosher_dart
• Go -https://github.com/vlipovetskii/go-zmanim
• SQL -https://github.com/BehindTheMath/zmanim-sql (alpha quality).
• VB6/VBA (Visual Basic) -https://github.com/diaphone1/vbzmanim

The .NET port was used to create a desktop app that is available athttps://github.com/NykUser/MyZman.

While I did my best to get accurate results, please double check before relying on these zmanim forhalacha lemaaseh.