Earlier this year I kept a minute by minute diary of how long it took me to make a 60" x 70" quilt. Here's what I found out: I spent 32 hours and 2 minutes making the quilt between March 31 and April 22. This total includes the time I took to wind bobbins, clean machines, wash, iron and cut fabric. It took me 19 hours to just make the top. The quilting only took 4.5 hours because I only cross-hatch quilted it with a walking foot. I used two different machines, one for piecing and one for quilting and binding so I used 5 bobbins for piecing and binding and 3 bobbins for quilting.
I work full-time so I do the bulk of my sewing on the weekend. I might sew for an hour or two at night but most nights I'm too tired to sit in front of the machine.