I am interested in how you document time because it is a force, you can only see its effect on other objects. Also a photograph is a snapshot of time that you will never be able to go back to - even when it comes up on your camera screen it is already in the past.
There is a very subtle change in the clouds, they have sifted slightly. I have found that there isn't a great deal of change in 60 seconds (in the Spanish mountains anyway).
This means that I will have to use a greater time scale if I am to show the effects of time across one frame. Next time will try a 20 minute time scale.