A Swift helper for generating Sunrise and Sunset times. Swift 3 compatible.

Solar uses an algorithm from the United States Naval Observatory for its calculations.

Solar needs a date, a timezone and a location specified in latitude and longitude coordinates:

let solar = Solar(withTimeZone: NSTimeZone.localTimeZone(), latitude: 51.528308, longitude: -0.1340267)
let sunrise = solar.sunrise
let sunset = solar.sunset

If no date is specified, today is used by default. If no timezone is specified, the device's local timezone is used by default.

When using Solar, all dates are returned in UTC. This means that for timezones other than GMT, the time will appear off. Don't forget to convert your date into the appropriate timezone.

• Official
• Civil
• Nautical
• Astromonical

Solar also comes packaged with some convenience methods:

let isDaytime = solar.isDaytime()
let isNighttime = solar.isNighttime()

Solar is available through CocoaPods. To install, simply add the following line to your podfile:

pod "Solar"

Then run pod install

• Documentation
• Unit tests

• Calculate more variables relating to solar activity, i.e. Moonrise, Moonset, Moon luminosity.

The MIT License (MIT)

Copyright (c) 2016 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 in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.