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Suntimes - Android app (and widget collection) that displays sunlight and moonlight times for a given location.
Solaris Sky Calendar - An astronomy calendar right in your pocket
SunIZup - SunIZup helps you to know the timings of the various Sunlight phases including the Golden Hour and...
Sundial App - Sun & Moon times and alerts for iPhone, iPad, & Apple Watch
Alpenglow - Never miss a incredible looking sunrise or sunset again
Solar Clock: Circadian Rhythm - Solar Clock: Circadian Rhythm syncs the Solar time with your Local time and shows important events (Sunrise, Waking up, Breakfast, Lunch, Solar Noon, Sport, Sunset, Sleep Time, …) based on Circadian rhythm.