Inspired by our fellow Pbaser, John Frings , at...
http://www.pbase.com/jomosoft/day2night
I also tried to make a daylight image into a nightscene.
Boy o Boy,thing look a lot easier than they are,so this will be my only try ;-)
NB: pic shot in Leiden,mi pueblito,a few years ago in full daylight.See next pic in this gallery