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PaperclipPerfector  10mo ago (text post)   2213 thread views

Friday Fun Thread for December 22, 2023

Be advised: this thread is not for serious in-depth discussion of weighty topics (we have a link for that), this thread is not for anything Culture War related. This thread is for Fun. You got jokes? Share 'em. You got silly questions? Ask 'em.

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the lunar month 29.5

You're right; just keep it a solar calendar, and let the moon precess as much as it wants.

New Year's Day would actually be a bonus for programmers: the zeroth day of the new year, and the first and only day in the zeroth month, keeping all the Saturdays divisible by seven.

Since you've dropped the lunar aspects, you can just intercalate a whole week at a time instead of having an orphan day every year, although this would cause the equinoxes and solstices to drift.

https://en.wikipedia.org/wiki/Pax_Calendar

Your proposal seems to be: https://en.wikipedia.org/wiki/International_Fixed_Calendar

I independently derived it, and chose a different location and name for the new month, but it’s fundamentally identical to the IFC, yes. I chose the name Leftober because it’s made from the leftover 2 or 3 days from the other months. Also, from the article:

Every year has 4 equal-length quarters of 91 days, each 13 weeks or 3+1⁄4 months long.

13 is my favorite prime number and 91 my favorite nonprime. It’s 7x13, a semiprime, and the only composite below 100 which can’t be factored by tricks and must be memorized:

  • Multiples of 2 and 5 end in 0,2,4,6,8 and 0,5 respectively
  • Multiples of 3 and 9 have their digits sum to 3,6,9 and 9 respectively
  • 49 is the square of 7 and is typically memorized in the square sequence 0,1,4,9,16,25,36,49,64,81,100,121,144

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