Human civilization is far from perfect. Still, it's pretty cool humanity overall agreed on how to measure time (for now). In today's follow-up to an earlier exploration of the Gregorian calendar, Ben, Noel and Max admire the many alternative, non-Gregorian calendars with their own ancient provenance, all of which exist in the modern day. Or modern night? Spoiler, a ton of these are based on the passage of the moon.