I don't know if anyone else ever had this thought but I found my self wondering the other day if there is some kind of a logging system for renders in Cinema 4D where I could go and see for example yesterdays rendering times. I like to keep track of render times, especially as I post my work on the site. As it turns out there is, it's called the Render Log and you have to enable it before you can use it.
So here's what you need to do
1. Go to Edit menu
Select Preferences from the bottom of the menu
2. Find Renderer on the list
Under Renderers options check the box that says "Create Renderer Log File". This creates a text file in which Cinema dumps data about your renders every time you render to the picture viewer window.
3. Where is the file located?
The easiest way to find to the log file is to click on the bottom of the "Preferences" window "Open Preferences Folder". This opens a file view and in that list, you will find a file called "RENDERLOG.TXT".
4. So what's in the log file?
In the file, you can find information like the filename, render start and stop times, resolution, total render time and other information.