C#

using Zmanim.TimeZone;
using Zmanim.TzDatebase; //in Zmanim.TzDatebase.dll assembly
using Zmanim.Utilities;

namespace Zmanim.Samples.Console
{
    class Program
    {
        static void Main(string[] args)
        {
            string locationName = "Lakewood, NJ";
            double latitude = 40.09596; //Lakewood, NJ
            double longitude = -74.22213; //Lakewood, NJ
            double elevation = 0; //optional elevation
            ITimeZone timeZone = new OlsonTimeZone("America/New_York");
            GeoLocation location = new GeoLocation(locationName, latitude, longitude, elevation, timeZone);
            ComplexZmanimCalendar zc = new ComplexZmanimCalendar(location);
            //optionally set it to a specific date with a year, month and day
            //ComplexZmanimCalendar zc = new ComplexZmanimCalendar(new DateTime(1969, 2, 8), location);

            System.Console.WriteLine("Today's Zmanim for " + locationName);
            System.Console.WriteLine("Sunrise: " + zc.GetSunrise()); //output sunrise
            System.Console.WriteLine("Sof Zman Shema MGA: " + zc.GetSofZmanShmaMGA()); //output Sof Zman Shema MGA
            System.Console.WriteLine("Sof Zman Shema GRA: " + zc.GetSofZmanShmaGRA()); //output Sof Zman Shema GRA
            System.Console.WriteLine("Sunset: " + zc.GetSunset()); //output sunset

            System.Console.WriteLine("Press enter to exit.");
            System.Console.ReadLine();
        }
    }
}

VB.NET

mports Zmanim.TzDatebase 'in Zmanim.TzDatebase.dll assembly
Imports Zmanim.Utilities
Imports Zmanim.TimeZone

Module Module1

    Sub Main()
        Dim locationName As String = "Lakewood, NJ"
        Dim latitude As Double = 40.09596 'Lakewood, NJ
        Dim longitude As Double = -74.22213 'Lakewood, NJ
        Dim elevation As Double = 0 'optional elevation
        Dim timeZone As ITimeZone = New OlsonTimeZone("America/New_York")
        Dim location As New GeoLocation(locationName, latitude, longitude, elevation, timeZone)
        Dim zc As New ComplexZmanimCalendar(location)
        'optionally set it to a specific date with a year, month and day
        'Dim zc As New ComplexZmanimCalendar(New DateTime(1969, 2, 8), location)
        System.Console.WriteLine("Today's Zmanim for " & locationName)
        System.Console.WriteLine("Sunrise: " & zc.GetSunrise().ToString)
        'output sunrise
        System.Console.WriteLine("Sof Zman Shema MGA: " & zc.GetSofZmanShmaMGA().ToString)
        'output Sof Zman Shema MGA
        System.Console.WriteLine("Sof Zman Shema GRA: " & zc.GetSofZmanShmaGRA().ToString)
        'output Sof Zman Shema GRA
        System.Console.WriteLine("Sunset: " & zc.GetSunset().ToString)
        'output sunset
        System.Console.WriteLine("Press enter to exit.")
        System.Console.ReadLine()

    End Sub

End Module

• Remove dependency to Java (IKVM assemblies)
• The API should follow the .NET guidelines
• Make it Linq friendly
• Add examples how to use this project in a ASP.NET MVC site and WPF Application
• Try to get it to work on Silverlight

I Googled around, and found your project.

I found it to be very easy to pull into my app, even on Android…no changes necessary, not even a recompile

moshe@debian:~/Desktop$ java -jar ZmanimCLI.jar sunrise
6:10:28

moshe@debian:~/Desktop$ java -jar ZmanimCLI.jar --date 2010/08/12 tzais72
20:38:15

moshe@debian:~/Desktop$ java -jar ZmanimCLI.jar
Usage: ZmanimCLI [options] [Time]

Options:
       -d      --date <yyyy/mm/dd>             Set date. (Year first!)
       -lat    --latitude <latitude>           Set location's latitude
       -lon    --longitude <longitude>         Set location's longitude
       -e      --elevation <elevation>         Set location's
elevation; Positive only
       -tz     --timezone <timezone>           Set location's TimeZone

Help:
       -h      --help                          Show this help
       -stl    --time-list                     Show common available
times to display
       -ftl    --full-time-list                Show all available
times to display
       -tzl    --timezone-list                 Show available timezones

Example:
       ZmanimCLI --latitude 31.7780 --longitude 35.235149 --elevation
600 --timezone Israel Sunrise
       Will show the sunrise time today in Jerusalem

Why is this useful? Well, first of all it was a nice experiment. But mainly, you can now use Zmanim (although externally), via any language you want, no longer being tied to Java.