Alex Schmidt rings in “the new year” with comedians/podcasters Billy Wayne Davis and Danielle Radford. It's a special double-topic show, beginning with the strange history and complex present day of the “normal” calendar. Then they’ll explore the most obscure, bizarre, and theoretical calendars from world history, many of them invented to fix that pope-y "Gregorian" dating system you might've planned a New Year's party around.

Footnotes: https://www.cracked.com/podcast/6-brain-stretching-calendar-systems-you-never-knew-existed/