Sunrise-Sunset-Js

Calculate sunrise and sunset times in Javascript. Based loosely and indirectly on Kevin Boone's SunTimes Java implementation of the US Naval Observatory's algorithm. Works on both browser (IE11+) and Node.js, ~1kb minified.

Install

Via npm:

npm install --save sunrise-sunset-js

Via script tag:

<script src="sunrise-sunset.js">

Usage

import { getSunrise, getSunset } from 'sunrise-sunset-js';
// Or if you use CommonJS imports:
// const { getSunrise, getSunset } = require('sunrise-sunset-js')

// Sunset tonight at the Triggertrap office for today
const sunset = getSunset(51.4541, -2.5920);

// Sunrise at Stonehenge on midsummer's day 2000
const sunrise = getSunrise(51.1788, -1.8262, new Date("2000-06-21"));

// Combine it with geolocation. Sunset tonight at your location.
navigator.geolocation.getCurrentPosition(function(position) {
  console.log(getSunset(position.coords.latitude, position.coords.longitude));
});

For those who still don't use js bundlers, there's global SunriseSunsetJS object, which exposes the same getSunset and getSunrise methods (must include dist/index.js in your html first)

var sunset = SunriseSunsetJS.getSunset(51.4541, -2.5920);
var sunrise = SunriseSunsetJS.getSunrise(51.4541, -2.5920, new Date("2000-06-21"));

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA, or connect to: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html

ThomasGreiner/sunrise-sunset

Sunrise-Sunset-Js

Install

Usage