Use of base two instead of base six systems is a very common option in Galactic civilization. Also, tradition puts the mean distance of the Progenitors' homeworld almost exactly eight light-minutes from the surface of its sun. This unit --called a hab --is a standard unit of time (and distance) in O-2 civilization. (The hab is inconveniently short for most H-2 species.) It follows that the natural unit of 2-3 hab is almost exactly a minute long, 23 hab is about 64 minutes long, and 216 hab (6553610) is 52428810 minutes --or a little over 36410 days. Thus 216 hab is commonly called a hab-year in Anglic.