From: Marcin Raczkowski <mailing.mr@...>
Date: 2007-09-19T23:42:39+09:00
Subject: Re: How to compute Sunrise / Sunset ?

Szymon 'tichy' wrote:
> On Sep 19, 3:30 pm, Marcin Raczkowski <mailing...@gmail.com> wrote:
>> Joe Joe wrote:
> 
>> [...]
> 
>> sunrise/sunset differ based on location and time,
>> i think there are very complicated equations [...]
> 
> Moderately complicated, I would say ;)
> 
> http://en.wikipedia.org/wiki/Sunrise_equation
> 
> 
> 
did you actually read article, to use that "moderately" complicated 
equation you have to calculate local noon, calculate declinations, 
convert hours to hours angles, also take into consideration such things 
as day-saving time, time zones etc.

anway here's page that calculates sunrise and sunset
http://aa.usno.navy.mil/data/docs/RS_OneDay.html