# @hebcal/noaa

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

Latest version **0.12.3** (published 2026-08-09) · LGPL-2.1 license · 0 weekly downloads

## Install

```sh
npm install @hebcal/noaa
pnpm add @hebcal/noaa
yarn add @hebcal/noaa
bun add @hebcal/noaa
```

## Health

**Score 75/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; has provenance; recently updated; high maintenance score; high quality score.

Warnings: low downloads; pre 1.0.

## Facts

| | |
|---|---|
| Version | 0.12.3 |
| Published | 2026-08-09 |
| First published | 2023-11-19 |
| Weekly downloads | 0 |
| License | LGPL-2.1 |
| TypeScript types | bundled |
| Module format | ESM |
| Node | >=18 |
| Dependencies | 1 |
| Unpacked size | 123 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 2 |
| Author | Michael J. Radwin |
| Maintainers | mjradwin |
| Keywords | zmanim, zman, kosherzmanim, kosher-zmanim, kosherjava |

## Links

- npm: https://www.npmjs.com/package/@hebcal/noaa
- Repository: https://github.com/hebcal/noaa
- Homepage: https://hebcal.github.io/api/noaa/
- Issues: https://github.com/hebcal/noaa/issues
- npm.io page: https://npm.io/package/@hebcal/noaa

## Dependencies (1)

- [temporal-polyfill](https://npm.io/package/temporal-polyfill.md) ^1.0.3

## Recent versions

- 0.12.3 (latest) — 2026-08-09
- 0.12.2 — 2026-07-29
- 0.12.1 — 2026-06-19
- 0.12.0 — 2026-06-19
- 0.11.0 — 2026-05-08
- 0.10.1 — 2026-04-10
- 0.9.2 — 2025-05-06
- 0.9.1 — 2025-03-28
- 0.8.16 — 2024-12-15
- 0.8.15 — 2024-12-13
- 0.8.14 — 2024-04-26
- 0.8.13 — 2024-04-07
- 0.8.12 — 2024-02-07
- 0.8.11 — 2023-12-13
- 0.8.10 — 2023-11-27
- … 10 more at https://npm.io/package/@hebcal/noaa/versions

## README

# @hebcal/noaa
sunrise and sunset via NOAA algorithm with elevation, based on KosherJava

## Introduction
This is a fork/subset of [KosherZmanim](https://github.com/BehindTheMath/KosherZmanim) library with `Temporal` replacing usage of `Luxon`.

Kosher Zmanim itself is a TS/JS port of the [KosherJava](https://github.com/KosherJava/zmanim) library.

## Installation
```bash
$ npm install @hebcal/noaa
```

## Synopsis
```javascript
import {GeoLocation, NOAACalculator} from '@hebcal/noaa';
import 'temporal-polyfill/global';

const latitude = 39.73915;
const longitude = -104.9847;
const elevtion = 1636;
const tzid = 'America/Denver';
const gloc = new GeoLocation(null, latitude, longitude, elevtion, tzid);
const plainDate = new Temporal.PlainDate(2020, 6, 5); // Friday June 5 2020
const noaa = new NOAACalculator(gloc, plainDate);

const zdt = noaa.getSunset();
console.log(zdt.toString()); // '2020-06-05T20:32:57.848-06:00[America/Denver]'
```

## [API Documentation](https://hebcal.github.io/api/noaa/index.html)

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_Source: https://npm.io/package/@hebcal/noaa · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._