Reduces eye strain by adjusting screen gamma based on the current time

Adaptive Lighting custom component for Home Assistant

HA Lovelace card for control of scheduler entities

A Swift micro library for generating Sunrise and Sunset times.

Kelvin - The hue bot

Python calculations for the position of the sun and moon.

A command line application written in Rust capable of delaying execution of other programs for time periods relative to sunrise and sunset.

Go package for calculating the sunrise and sunset times for a given location

SunKit is a Swift library which uses math and trigonometry to compute several information about the Sun.

Set macOS dark mode and Alfred dark theme at sunset

自用天文算法，公历农历转换、八大行星位置、日出日落月出月落时间、节气物候时间等

Night and day regions on Earth

KosherJava Zmanim API / Library

Sunrise and sunset time calculation for given coordinates. ~1kb minified with zero dependencies.

🌅 Go package that provides the sunrise and sunset equation

A Python port of suncalc.js for calculating sun position and sunlight phases

🌅 A macOS app that sets your wallpaper based on sunrise and sunset.

Calculates the sunrise and sunset for a given date and location (using GEO coordinates). This library uses the method outlined NOAA Solar Calculations Day spreadsheet found at http://www.esrl.noaa.gov/gmd/grad/solcalc/calcdetails.html.

Arduino library to calculate the times of sunrise, sunset, solar noon, twilight, the solar position, and more.

Positional is a simple Android app for displaying information about your current location.