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@hebcal

hebcal

perpetual Jewish Calendars in Go, JavaScript, Swift, C, Java and Perl
README.md

Welcome! 👋

Hebcal (pronounced HEEB-kal, as in Hebrew calendar) is a perpetual Jewish calendar program. It includes tools to help you generate a list of Jewish holidays for any year (past, present or future). Also available are a Hebrew date converter, Shabbat candle lighting times and Torah readings. Create a personal list of Yahrzeit (memorial) dates.

Hebcal is available in Go, JavaScript, Swift, C, Java and Perl.

The key routines are translations of Dershowitz & Reingold's lisp code in GNU-Emacs 18.

Hebcal is made available for free under the GNU Public License. However, I would like to hear from you. If you like hebcal, send me a message! If you don't like hebcal, well, let me know also, but be gentle.

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  1. hebcal hebcal Public

    A perpetual Jewish Calendar

    Go 152 41

  2. hebcal-es6 hebcal-es6 Public

    perpetual Jewish Calendar with holidays, Shabbat and holiday candle lighting and havdalah times, Torah readings, and more

    TypeScript 104 18

  3. hebcal-go hebcal-go Public

    A perpetual Jewish Calendar (golang)

    Go 17 4

Repositories

Showing 10 of 33 repositories
  • hebcal-leyning Public

    Javascript Torah Reading API for Parashat HaShavua and holidays

    hebcal/hebcal-leyning’s past year of commit activity
    JavaScript 9 BSD-2-Clause 2 0 6 Updated Apr 1, 2025
  • hebcal-rest-api Public

    Jewish holidays and Hebrew calendar exports as RSS, CSV, and FullCalendar.io objects, and more

    hebcal/hebcal-rest-api’s past year of commit activity
    JavaScript 18 BSD-2-Clause 0 0 5 Updated Mar 31, 2025
  • hdate-js Public

    converts between Hebrew and Gregorian dates using Rata Die (R.D.) algorithm by Dershowitz and Reingold

    hebcal/hdate-js’s past year of commit activity
    TypeScript 2 GPL-2.0 1 0 1 Updated Mar 31, 2025
  • hebcal-web Public

    Hebcal server-side Node.js for www.hebcal.com and download.hebcal.com

    hebcal/hebcal-web’s past year of commit activity
    JavaScript 7 BSD-2-Clause 2 0 1 Updated Mar 29, 2025
  • hebcal-shabbat-email Public

    Weekly shabbat times email subscription management for hebcal.com

    hebcal/hebcal-shabbat-email’s past year of commit activity
    TypeScript 3 BSD-2-Clause 0 0 0 Updated Mar 29, 2025
  • hebcal-locales Public

    Translations for Hebcal events in multiple languages

    hebcal/hebcal-locales’s past year of commit activity
    JavaScript 2 BSD-2-Clause 1 0 0 Updated Mar 29, 2025
  • hebcal-es6 Public

    perpetual Jewish Calendar with holidays, Shabbat and holiday candle lighting and havdalah times, Torah readings, and more

    hebcal/hebcal-es6’s past year of commit activity
    TypeScript 104 GPL-2.0 18 6 5 Updated Mar 29, 2025
  • noaa Public

    sunrise and sunset via NOAA algorithm with elevation, based on KosherJava

    hebcal/noaa’s past year of commit activity
    TypeScript 1 LGPL-2.1 1 0 0 Updated Mar 28, 2025
  • hebcal-mcp Public

    Model Context Protocol extension for Hebrew calendar

    hebcal/hebcal-mcp’s past year of commit activity
    TypeScript 1 BSD-2-Clause 0 0 0 Updated Mar 24, 2025
  • hebcal-swift Public

    Perpetual Hebrew calendar in Swift

    hebcal/hebcal-swift’s past year of commit activity
    Swift 14 GPL-2.0 0 0 0 Updated Mar 16, 2025
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