The reason there are 60 minutes in an hour is due to ancient mathematics of the Babylonians, Sumerians, and Egyptians, and the structure of the human hand. Sumerians counted to 12 on one hand by using the three sections (phalanx) on 4 fingers. They would multiply 12 by the five digits on the other hand to get 60. The Babylonians divided a day into 12 daytime hours and 12 night time hours, but they were not exact. The Egyptians refined these measurements by keeping 24 hours with 60 minutes in each hour, equally divided, day or night.