Day & Night

Now, I could go through a long drawn out explanation of how this program works, but who would really care? I can´t vouch for the accuracy of all the times, but the ones I generated seemed to jive with the U. S. Naval Observatory. If you get strange results, perhaps you did something strange ;-)

Latitude:
Longitude:
From GMT: hours
Start (mdy): --
Duration: points
Period: days
Type:O