From: Kyle Schmitt <kyleaschmitt@...>
Date: 2009-05-14T22:46:51+09:00
Subject: Re: Ruby script to calculate Muslim prayer times

This FAA site has an online calculator (you could always read through
the javascript):
http://akweathercams.faa.gov/srsscalc.php

And here's  a site with the formulas (at a glance I'd say grab a cup
of coffee & a quite corner this weekend if you really want to
understand it) :
http://herbert.gandraxa.com/herbert/lod.asp