Late submissions are accepted but only up to a week after the jam has ended. The jam runs yearly so if you feel as though you need more time you can also submit it next year :] Dark Amare jam is an upcoming jam in May I believe and I am helping run that as well, so you could submit it to that jam as well (if it fits the theme of the jam) if you don’t want to wait a whole year but need more time than a week.