Objective-C Library for Sunrise and Sunset?

Question

Is there an Objective-C (or C) library (that is compatible with core location) that can tell me the time of sunrise and sunset for any given calendar day?

Answer 1

Try this: https://github.com/mourner/suncalc/

Very clear and easy to implement, although it writen by javascript but it is easy to convert it to
objective-C

It also support for calculate sun, moon position and coordinate.