Khonsu is the god of the moon, moonlight, and time in Egyptian mythology. In the beginning of the gods, he gambled time with the sky goddess Nut. The goddess Nut won so many times that she could then add five days to the calendar. These days were called the "demon days". Khonsu's father is Sobek, and his mother is Hathor.
Khonsu is the moon god, and also associated with gambling, he gambled with Geb so they could get they could get 5 extra days, in those days, Nut gave birth to Isis, Osiris, Set(h), Nepthys, and Hermachis. He is sometimes depicted as looking like a falcon-headed god (like Ra, and Horus) with a moon disk in the center, or a green skinned god, with a moon disk, the child of Amun and Mut.