I know that Creator can estimate the time of the print job if it is sending it to the printer via a computer connection, but that doesn't always work for longer prints...
What about an estimation when previewing the print job...An estimation of how long the printer itself may take to do it from the SD card?
I realize the software is out of the loop at that point, but I assume there still might be a way to estimate it....realizing it is only an estimation and not an exact amount...