The Human Calculator Calendar - The Human Calculator Calendar has 13 months that are numbered 0 - 12. Here is Month Zero of 2020. #time #calendar #days #months #years #calendarreform #13monthcalendar #leapday #zerocounts | Facebook
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code golf - Count how many months are having a full 31 days by counting knuckles - Code Golf Stack Exchange
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primewritingsnet on X: "Know the number of days in a month. Each knuckle bump and gap is a separate month. If you count on one hand, then, after reaching the end, start
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