I recently wrote a small script to change the wallpaper as the time of day changes. anyways, the script checks the computer time, changes it to a 24hr type digit. then references a folder of images for a matching image name.
install instructions, make a folder in your home folder/ picture/ called wallpaper
save the scpt file there, and then find images you want to use for your backgrounds. rename them as (hours)--2.jpg
example noon ( 12:00 ) would be 12--2.jpg example 6pm (18:00) would be 18--2.jpg
and so on, you can make 24images if you want. improve on, modify, the script all you want. its very simple right now
you will need to do this for it to work. change the part of my script that has MY folder structure! and the path for the scpt file.
**** tip *****
I have mine setup this way.
I have my morning desktop 00--2.jpg 01--2.jpg 03--2.jpg Etc... (goes on till noon 12--2.jpg)
Those are all just duplicated images, it may not be the cleanest way of doing it, but I'm working on a better way.
So I have 3 images, just duplicated to "fill" the hours I want it to be shown.