At first, I found it very difficult to find something to take pictures of over and extended time. However, the idea struck me, I would use my clock and a lighting arrangement for it to be perceived  as if large quantities of time have been passing. It took a mere 20 - 30 minutes to make it look like a whole day passed. I changed the time on the clock, and used lights, both natural and artificial, to make it darker with each image. Then I thought it would be amusing to change my models positions with each image, so I did that as well. I am very fond of how this collage turned out, and I enjoyed the process.