|ReleasedLast Release||Oct 2017|
Maintained by Chris Howell.
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, 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 today:
let solar = Solar(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.
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)
Astromonical (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 and Carthage.
The MIT License (MIT)
Copyright © 2017 Chris Howell
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the “Software”), to deal
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