A Swift helper for generating Sunrise and Sunset times.
Solar performs its calculations locally using an algorithm from the United States Naval Observatory, and thus does not require the use of a network.
Solar simply needs a date and a location specified as a latitude and longitude:
let solar = Solar(for: someDate, coordinate: CLLocationCoordinate2D(latitude: 51.528308, longitude: -0.1340267)) let sunrise = solar?.sunrise let sunset = solar?.sunset
We can also omit providing a date if we just need the sunrise and sunset for the current date and time:
let solar = Solar(coordinate: CLLocationCoordinate2D(latitude: 51.528308, longitude: -0.1340267)) let sunrise = solar?.sunrise let sunset = solar?.sunset
Note that all dates are UTC. Don't forget to format your date into the appropriate timezone if required.
Types of sunrise and sunset
There are several types of sunrise and sunset that Solar generates. They differ by how many degrees the sun lies below the horizon:
Civil (6° below horizon)
Nautical (12° below horizon)
Astronomical (18° below horizon)
For more information, see https://www.timeanddate.com/astronomy/different-types-twilight.html
Solar also comes packaged with some convenience methods:
// Whether the location specified by the `latitude` and `longitude` is in daytime on `date` let isDaytime = solar.isDaytime // Whether the location specified by the `latitude` and `longitude` is in nighttime on `date` let isNighttime = solar.isNighttime
Solar is available through CocoaPods, Carthage, and Swift Package Manager.
To include Solar in an application, add the following pod to your Podfile, then run
pod "Solar-dev", "~> 3.0"
To include Solar in another pod, add the following dependency to your podspec:
s.dependency "Solar", "~> 3.0"
github "ceeK/Solar" ~> 3.0
Swift Package Manager
To include Solar in an application in Xcode:
- Go to File ‣ Swift Packages ‣ Add Package Dependency.
https://github.com/ceeK/Solar.gitas the package repository and click Next.
- Set Rules to Version, Up to Next Major, and enter
3.0.0as the minimum version requirement. Click Next.
To include Solar in another Swift package, add the following dependency to your Package.swift:
.package(name: "Solar", url: "https://github.com/ceeK/Solar.git", from: "3.0.0")
The MIT License (MIT)
Copyright (c) 2016-2021 Chris Howell