Please describe the problem:
During Christmas time I started to use gnome applet libgweather and noticed that  Sunrise / sunset times around and above Polar Circle are wrong.
This seems to be a problem atleast to sites at northern Finland : Enontekiö, Ivalo, Kittilä and Rovaniemi. Others are more or less ok. I haven't checked other countries.

For example 19th of January 2009, applet gave following times to Rovaniemi: sunrise 19:01 and sunset 14:54. According applet during night time sun is shining ! 



Steps to reproduce:
1. If your computers local setting doesn't disturb trial, just select country = Finland. Then compare sunsire / sunset times at locations Kemi and Rovaniemi. There shouldn't be a very big difference between those times. 

2. 
3. 


Actual results:


Expected results:


Does this happen every time?
Yes.

Other information:
According one of finnsh translators for gnome (hile@iki.fi) Rovaniemi coordinates are ok. 
calculation problem ?

During Cristmas sun doesn't rise or set (in real world) at some of those placies. Opposite happends (in real world) during summer time at some of these sites, sun doesn't set down at all.

Today 27th, january 2009 :
real times are   Kemi = 09:32 and 15:28, Rovaniemi = 09:36 and 15:24
libgweather gave Kemi = 09:34 and 15:40, Rovaniemi = 08:10 and 15:26

There is an small error already at Kemi.
During Christmas errors were several hours.