- Title: The Human Calculator Calendar - 2013 Edition
- Released: 0000-00-00
- Pages: 0
- ASIN: B009LUCXNM
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The Human Calendar has 365 days divided into 13 months of 28 days each and the first day of the year is the Zero Day. The 13 months are numbered 0-12. Every month has 4 weeks. Every date falls on the same day of the week every month.
For more information, please see TheHumanCalculatorCalendar.com pdf