EP: Passage of time

Marcus, that was a tough one.
I needed some days and a lot of grey cells until I got an idea.
It was also difficult to find a suitable hourglass. Thanks to my friend Anne, who borrowed it to me :-)
It is straight out the camera, I only incresed the contrast a bit.
It is a double/ long exposure (EP1/EP2). First I moved the hourglass in 5 seconds time, meanwhile the sand was falling down. Than I added the Death and the finished hourglass after changing the settings, the light and the DOF.
I surmise it is obvious, what I wanted to show :-D