Agent skill

shabbat-times

Access Jewish calendar data and Shabbat times via Hebcal API. Use when building apps with Shabbat times, Jewish holidays, Hebrew dates, or Zmanim. Triggers on Shabbat times, Hebcal, Jewish calendar, Hebrew date, Zmanim.

View SKILL.md on GitHub Repository
Stars 163
Forks 31

Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/shabbat-times

SKILL.md

Jewish Calendar & Shabbat Times

Access Shabbat times and Jewish calendar data via the Hebcal API.

Quick Start

typescript
// Get Shabbat times for a location
const response = await fetch(
  'https://www.hebcal.com/shabbat?cfg=json&geonameid=5128581&M=on'
);
const data = await response.json();

Shabbat Times API

By GeoNames ID (Recommended)

typescript
const url = new URL('https://www.hebcal.com/shabbat');
url.searchParams.set('cfg', 'json');
url.searchParams.set('geonameid', '5128581'); // New York
url.searchParams.set('M', 'on'); // Include Havdalah

const response = await fetch(url);
const data = await response.json();

// Response
{
  "title": "Hebcal New York January 2025",
  "items": [
    {
      "title": "Candle lighting: 4:28pm",
      "date": "2025-01-10T16:28:00-05:00",
      "category": "candles"
    },
    {
      "title": "Parashat Shemot",
      "date": "2025-01-11",
      "category": "parashat"
    },
    {
      "title": "Havdalah: 5:31pm", 
      "date": "2025-01-11T17:31:00-05:00",
      "category": "havdalah"
    }
  ]
}

By Coordinates

typescript
const url = new URL('https://www.hebcal.com/shabbat');
url.searchParams.set('cfg', 'json');
url.searchParams.set('latitude', '32.0853');
url.searchParams.set('longitude', '34.7818');
url.searchParams.set('tzid', 'Asia/Jerusalem');

Jewish Calendar API

typescript
const url = new URL('https://www.hebcal.com/hebcal');
url.searchParams.set('cfg', 'json');
url.searchParams.set('v', '1');
url.searchParams.set('year', '2025');
url.searchParams.set('month', 'x'); // All months

// Optional parameters
url.searchParams.set('maj', 'on'); // Major holidays
url.searchParams.set('min', 'on'); // Minor holidays
url.searchParams.set('mod', 'on'); // Modern holidays
url.searchParams.set('nx', 'on');  // Rosh Chodesh
url.searchParams.set('ss', 'on');  // Special Shabbatot
url.searchParams.set('s', 'on');   // Weekly parsha

const response = await fetch(url);
const holidays = await response.json();

Hebrew Date Conversion

typescript
// Gregorian to Hebrew
const url = new URL('https://www.hebcal.com/converter');
url.searchParams.set('cfg', 'json');
url.searchParams.set('gy', '2025');
url.searchParams.set('gm', '1');
url.searchParams.set('gd', '15');

const response = await fetch(url);
const data = await response.json();
// { "hy": 5785, "hm": "Tevet", "hd": 15, "hebrew": "ט״ו בטבת תשפ״ה" }

React Hook

typescript
import { useState, useEffect } from 'react';

interface ShabbatTimes {
  candleLighting: Date | null;
  havdalah: Date | null;
  parsha: string | null;
}

function useShabbatTimes(geonameid: string) {
  const [times, setTimes] = useState<ShabbatTimes | null>(null);
  const [loading, setLoading] = useState(true);

  useEffect(() => {
    async function fetchTimes() {
      const url = new URL('https://www.hebcal.com/shabbat');
      url.searchParams.set('cfg', 'json');
      url.searchParams.set('geonameid', geonameid);
      url.searchParams.set('M', 'on');

      const response = await fetch(url);
      const data = await response.json();

      const result: ShabbatTimes = {
        candleLighting: null,
        havdalah: null,
        parsha: null
      };

      for (const item of data.items) {
        if (item.category === 'candles') {
          result.candleLighting = new Date(item.date);
        } else if (item.category === 'havdalah') {
          result.havdalah = new Date(item.date);
        } else if (item.category === 'parashat') {
          result.parsha = item.title.replace('Parashat ', '');
        }
      }

      setTimes(result);
      setLoading(false);
    }

    fetchTimes();
  }, [geonameid]);

  return { times, loading };
}

Common GeoNames IDs

City GeoNames ID
Jerusalem 281184
Tel Aviv 293397
New York 5128581
Los Angeles 5368361
London 2643743
Paris 2988507

Resources

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