When I made the first Single Irish Chain in a Day from the EB book, I did not keep a record of the hours/minutes. When I made the second Single Irish Chain in a Day, I did keep a record -- 21 hours. Now I know if it is possible for me to make another one for a gift, donation or for me. I can sew a plain skirt in 8 hours and a tailored jacket in 40 hours. If I need to do something, I like to know if it is possible in the time available.