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KosherCocoa allows you to perform calculations relevant to the Jewish Calendar.
Objective-C C C++


KosherCocoa is library that allows you to use sunrise, sunset, Jewish holidays, and other Hebrew calendar calculations in your app.


KosherCocoa offers six distinct features, each provided by a set of classes in the library. They are:

  • Sunrise/Sunset - When the sun rises and sets at a given latitude, longitude, and altitude.
  • Zmanim - Shema, Zman Tefila, Chatzos, and more.
  • Parashat Hashavua - Weekly torah portion, with schedules for Israel and Chul.
  • Sefira - The omer count between Passover and Shavuot.
  • Daf Yomi - The daily talmud study program followed by thousands of Jews worldwide.
  • Chagim - When Jewish holidays fall.

Setting it up:

Clone into, or download, the repository. Copy the folder called Library and import KosherCocoa.h. If you only want sunrise and sunset, you can copy the folder called Solar and ignore the rest.

You can also use CocoaPods as of KosherCocoa 2.0.2.

Technical Requirements:

The latest version of KosherCocoa has been developed with the iOS 7 SDK and uses ARC. You'll need Xcode 5 to make it work, because unit tests are built with XCTest.

Even if your project doesn't use ARC, you'll want to compile KosherCocoa with ARC. Use the -fobjc-arc compiler flag for that.


You can build your own documentation using appledoc, if you have it.

Note: As of 2.0.4, the default target will not run the appledoc script. In previous versions, the build script was part of the default build target, and would fail if you didn't have appledoc installed.

Using KosherCocoa:

See the full documentation or poke around the file headers. Most things take just a few lines of code.


KosherCocoa is hereby released under the modified LGPL License, version 2.1. See the full text of the license on the GNU website.

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