Hebrew Calendar Resources: Tools, Libraries, and APIs
A curated list of open-source tools, libraries, APIs, and integrations for working with the Hebrew (Jewish) calendar, zmanim (halachic times), and related calculations.
GitHub: danielrosehill/Hebrew-Calendar-Resources
Collection of open-source tools, libraries, APIs, and integrations for working with the Hebrew calendar
Python Libraries
pyluach — Python package for Hebrew date conversions and calculations
simlist/pyluach ★ 68A Python package for manipulating Hebrew (Jewish) calendar dates and Hebrew-Gregorian conversion.
calendarhebrew-calendarhebrew-datejewishjewish-calendarpy-libhdate — Python bindings for libhdate, providing Hebrew calendar and zmanim
py-libhdate/py-libhdate ★ 40Python 3 library for Hebrew date and zmanim (times) objects in python
hebrew-calendarpython-librarypython27python3python3-library
JavaScript / TypeScript Libraries
jewish-date — JavaScript library for Hebrew date conversions
Shmulik-Kravitz/jewish-date ★ 68Jewish Date is a fast and modern 2kB JavaScript library that provides a simple and efficient Gregorian-to-Hebrew and vice versa date converter.
browsercalendarconvertdatehdatehebcal-es6 — Modern ES6 JavaScript library for Hebrew calendar calculations
hebcal/hebcal-es6 ★ 121perpetual Jewish Calendar with holidays, Shabbat and holiday candle lighting and havdalah times, Torah readings, and more
calendardaf-yomihebrew-calendarhebrew-dateholidays
Java Libraries
KosherJava Zmanim — Comprehensive Java library for calculating zmanim (halachic times)
KosherJava/zmanim ★ 126KosherJava Zmanim API / Library
calendarsdaf-yomidawnduskhebrew-calendar
Web Services and APIs
Hebcal — Full-featured Hebrew calendar web service with holiday, parsha, and zmanim data
hebcal-rest-api — REST API for Hebcal's Hebrew calendar services
hebcal/hebcal-rest-api ★ 18Jewish holidays and Hebrew calendar exports as RSS, CSV, and FullCalendar.io objects, and more
TorahCalc — Tools for biblical/Talmudic unit conversions, gematria, Hebrew calendar, and zmanim
torahcalc/torahcalc ★ 25New website and API for TorahCalc - Tools for Torah study
gematriahacktoberfesthalachahebrew-calendarjudaism
MCP Servers
hebcal-mcp — MCP server for Hebcal Hebrew calendar data
hebcal/hebcal-mcp ★ 5Model Context Protocol extension for Hebrew calendar
zmanim-mcp-server — MCP server for zmanim (halachic times) calculations
ariroffe72/zmanim-mcp-server ★ 1A comprehensive MCP server for calculating Jewish prayer times (zmanim).
judaism
Smart Home and Desktop Integrations
Home Assistant Jewish Calendar — Official Home Assistant integration for Jewish calendar sensors
MMM-HebrewCalendar — MagicMirror module for displaying the Hebrew calendar
neshkoli/MMM-HebrewCalendar ★ 2MagicMirror2 module allows you to view Hebrew calendar with your events in a monthly calendar view
Hebrew-Date-KDE-Widget — KDE Plasma widget displaying the current Hebrew date
danielrosehill/Hebrew-Date-KDE-Widget ★ 1WIP - KDE Plasmoid for displaying the Hebrew calendar date
Full-Stack Applications
myHebrewDates — Track and get reminders for Hebrew date anniversaries (yahrzeits, birthdays, etc.)
abe-101/myHebrewDates ★ 25Automatically sync recurring Hebrew calendar events, like birthdays and anniversaries, to your digital calendar
djangohebrewicalicalendarics
Daniel Rosehill
AI developer and technologist specializing in AI systems, workflow orchestration, and automation. Specific interests include agentic AI, workflows, MCP, STT and ASR, and multimodal AI.
