Are you talking just the tops or the full quilt?
I made my grandson's quilt complete from start to shipping for Christmas in 6 weeks. It would have been less, but had schedule issues with DD who was helping me finish quilting it. (It was my first bed size quilt.
I just finished the top to one for my GD in 2 weeks. Still have to sandwich it and quilt that one.
The one I'm working on now ----- 2 weeks and counting !!!!
It also depends on how many hours I'm here on the board, learning and helping others. LOL