Adaptive sun-tracking cover control for Home Assistant: blinds, awnings, and venetian tilts with climate-aware positioning and a priority override pipeline.

High-precision sunrise, sunset, twilight, golden-hour & solar-position calculation for JavaScript / TypeScript. Based on NREL's Solar Position Algorithm (SPA). Zero runtime deps, ESM + CommonJS, native Temporal support.

Fast, reliable Rust APIs for solar position and Jewish Zmanim calculations from any date and location.

A library for a microcontroller that corrects time offset by measuring the light level against a computed daylight curve.

Sun and planet positions with rise and set times using R Shiny web app

SOLARIS：交互式全球光照演算，实时呈现太阳直射点、昼夜晨昏线与当地日出日落 | Interactive Three.js globe for real-time solar illumination, the day-night terminator & local sun events

Estimate the sun's position (azimuth & elevation) for a given location and time — Python.

Revolutionary CSS/JavaScript system for real-time, environment-based website theming. Automatically adjusts colors based on location, time, and weather conditions.

SunMoonTimes is a .NET library for accurate solar and lunar position calculations. It provides sunrise, sunset, moonrise, and moonset times, plus azimuth and elevation angles for any observer location and time—past, present, or future.