#calendar math

Calendar math [image description: photos of notes on calendar related information and math. They are written minimistically to let the reader deduce the context without fully explaining. Photo 1. It begins with math sentences: 30*12 = 360 February = 28 so 31 --> 7 times Months = 1, -2, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1 Jan, Feb, Mar, April, May, June, July, Aug, Sep, Oct, Nov, Dec march april may is Mr. Apmy (as a pneumonic to help me remember the order) Photo 2. A two column chart labeled January-February and March-December.  There are a series of numbers descending in each column and to the right it is marked the that these numbers reflect the start year of 2020. The January-February column of numbers is reflective of the day of the week on which January 1st falls, while March-December reflects when March 4th falls. Each list starts with the number 4 but soon diverges. The lists are composed of numbers 1 through 7 because there are only 7 days in the week. I have recorded them here in groupings of 4 at a time for ease of my own visual comparison. The Jan-February sequence is: 4671, 2456, 7234, 5712, 3567, 1345, 6123  where forward arrows indicates the pattern is plus 2 for the year subsequent the leap year, and plus 1 otherwise moving forwards in time, and going backwards in time applies a minus 2 on years that are 1 year subsequent to a leap year and minus 1 otherwise.  The March-December sequence is:  4567, 2345, 7123, 5671, 3456, 1234, 6712 It’s not remarked upon in the chart but these two sequences are the same if the digits are rotated through by 23 digits. That is the January-February pattern is the same starting in 2020 as the March-December starting in 2043. Or by rotation by 5 since the pattern is the same starting March-Dec 2020 and Jan-Feb 2025.  Photo 3:

Now go smoke a fatty and contemplate it.