Angle 3.2.1

.NET 5.0 .NET Core 3.1 .NET Standard 1.3 .NET Framework 4.0
dotnet add package Angle --version 3.2.1
NuGet\Install-Package Angle -Version 3.2.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Angle" Version="3.2.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Angle --version 3.2.1
#r "nuget: Angle, 3.2.1"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Angle as a Cake Addin
#addin nuget:?package=Angle&version=3.2.1

// Install Angle as a Cake Tool
#tool nuget:?package=Angle&version=3.2.1

Build Status

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Nuget Nuget


Calculates the sunrise and sunset for a given date and location (using GEO coordinates). This library uses the method outlined NOAA Solar Calculations Day spreadsheet found at


Add this to your project in Visual Studio using NuGet Package Manager UI and ID SolarCalculator or using the Package Manager Console.

PM> Install-Package SolarCalculator

Sample Code

The sample code below shows how to initialize and call the Solar Calculator to get the sunrise and sunset for the given location.

Sunrise in Chicago

using System;
using Innovative.SolarCalculator;

// ***
// *** Geo coordinates of Oak Street Beach in Chicago, IL
// ***
// *** NOTE: the .Date is not necessary but is included to demonstrate that time input 
// *** does not affect the output. Time will be returned in the current time zone so it 
// *** will need to be adjusted to the time zone where the coordinates are from (there 
// *** are services that can be used to get time zone from a latitude and longitude position).
// ***
TimeZoneInfo cst = TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time");
SolarTimes solarTimes = new SolarTimes(DateTime.Now.Date, 41.9032, -87.6224);
DateTime sunrise = TimeZoneInfo.ConvertTimeFromUtc(solarTimes.Sunrise.ToUniversalTime(), cst);

// ***
// *** Display the sunrise
// ***
Console.WriteLine($"View the sunrise across Lake Michigan from Oak Street Beach in Chicago at {sunrise.ToLongTimeString()} on {sunrise.ToLongDateString()}.");

Sunset in Michigan

// ***
// *** Geo coordinates of Benton Harbor/Benton Heights in Michigan
// ***
TimeZoneInfo est = TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time");              
SolarTimes solarTimes = new SolarTimes(DateTime.Now, 42.1543, -86.4459);
DateTime sunset = TimeZoneInfo.ConvertTimeFromUtc(solarTimes.Sunset.ToUniversalTime(), est);

// ***
// *** Display the sunset
// ***
Console.WriteLine($"View the sunset across Lake Michigan from Benton Harbor in Michigan at {sunset.ToLongTimeString()} on {sunset.ToLongDateString()}.");
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard1.3 netstandard1.4 netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1
.NET Framework net40 net403 net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen30 tizen40 tizen60
Universal Windows Platform uap uap10.0
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • .NETCoreApp 3.1

    • No dependencies.
  • .NETFramework 4.0

    • No dependencies.
  • .NETFramework 4.5

    • No dependencies.
  • .NETFramework 4.6.1

    • No dependencies.
  • .NETStandard 1.3

  • .NETStandard 2.0

    • No dependencies.
  • .NETStandard 2.1

    • No dependencies.
  • net5.0

    • No dependencies.
  • net6.0

    • No dependencies.
  • net7.0

    • No dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Angle:

Package Downloads

Calculates the sunrise and sunset for a given date and location (using Geographic Coordinates). This library uses the method outlined NOAA Solar Calculations Day spreadsheet found at Calculations are based on the book "Astronomical Algorithms" by Jean Meeus.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
3.2.1 0 12/2/2022
3.2.0 0 12/2/2022
3.1.0 32,571 1/15/2022
3.0.4 113,939 4/16/2020
3.0.3 568 4/14/2020
3.0.2 499 4/14/2020
3.0.1 2,834 1/25/2020
2.0.0 58,750 9/29/2017 47,552 7/27/2014

v3.2.1 Added ReadMe to package.
v3.2.0 Added net 7.0 support.
v3.1.0 Added support for net 5.0 and net 6.0.
v3.0.4 Corrected date shifting issue.
v3.0.3 Added missing documentation.
v3.0.2 Added source code and symbol integration to NuGet package.
v3.0.1 Changed license to LGPL Public 3.0.
v3.0.0 Added support for multiple frameworks.
v2.0.0 Converted to .NET Standard/Moved to GitHub.
v1.0.2 Added multiple .NET versions. Completed units test and corrected minor issues.
v1.0.1 Changed namespace to Innovative.Geometry