As it happens, I did track the time of one quilt years ago. It was 66 x 66 and took 77 hours. It was only tied and not quilted. If you need to track the length of time for the quilting. How about going for one hour and then seeing how much got done. Then you can do some math to see what it would take for the whole thing.
I just started a new quilt a few days ago, and am amazed how long it took me to cut all the pieces. Wow!
