What variety did you plant? I went with Ambrosia this year since I got a late start. It comes in around 75 days after sprouting, and is a bicolor sweet corn.
I planted three kinds, Buttergold Sweet, Bodacious R/M Sweet, Incredible R/M. The Buttergold are supposed to be a 65 day kind. I'm not happy with them. Don't get me wrong, what we had for dinner was great but this type just didn't produce for me. The ears are small and the germination was very poor. I had to replant quite a bit of the buttergolds. The Bodacious looks to be doing the best and the Incredible is not far behind but neither of those will be ready for another week or two.