Thanks to Marc, I noticed that today's date is a palindrome in two different date formats—DMMYY (61016) and DMMYYYY (6102016).
This made me wonder when there will be another date that is palindromic in multiple date formats, so I wrote a Python script to find out.
Turns out there's not too long to wait: 10 July 2017 will be palindromic in two date formats (MDDYY and MDDYYYY). But before that, there's 1 July 2017, which is palindromic in three date formats (YYMMD, YYMD and MDYY). Most exciting of all, however, is 2 February 2020, which is palindromic in 7 different formats!
The next palindromic dates are shown in the following table. It will update as the dates pass.
 \(n\) Next day with \(\geq n\) palindromic formatsFormats
112 May 2021YYMDD,DDMYY
212 May 2021YYMDD,DDMYY
A full list of future palindromic dates can be found here.

Similar posts

PhD thesis, chapter 2
Dragon curves II
Logical contradictions
Dragon curves


Comments in green were written by me. Comments in blue were not written by me.
 Add a Comment 

I will only use your email address to reply to your comment (if a reply is needed).

Allowed HTML tags: <br> <a> <small> <b> <i> <s> <sup> <sub> <u> <spoiler> <ul> <ol> <li>
To prove you are not a spam bot, please type "rotcev" backwards in the box below (case sensitive):


Show me a random blog post

Jan 2021

Christmas (2020) is over
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼


wave scattering javascript golden ratio matrix multiplication dates signorini conditions chalkdust magazine go puzzles electromagnetic field chebyshev hannah fry coins gaussian elimination captain scarlet rugby football convergence weak imposition latex cross stitch mathslogicbot london underground craft computational complexity misleading statistics map projections sound ternary the aperiodical python christmas card twitter statistics oeis logs plastic ratio accuracy sport royal baby curvature numerical analysis mathsjam advent calendar menace wool final fantasy dataset php error bars mathsteroids squares european cup weather station geogebra simultaneous equations bubble bobble countdown reddit determinants matrix of cofactors dragon curves golden spiral folding tube maps data visualisation rhombicuboctahedron finite element method game of life bodmas frobel arithmetic london nine men's morris speed triangles ucl gerry anderson talking maths in public noughts and crosses platonic solids trigonometry raspberry pi boundary element methods pi cambridge phd pac-man programming probability manchester science festival christmas game show probability palindromes big internet math-off sorting matt parker asteroids realhats quadrilaterals logic hexapawn games bempp exponential growth world cup national lottery fractals video games inverse matrices pythagoras reuleaux polygons data preconditioning interpolation news braiding chess geometry hats matrices people maths draughts polynomials propositional calculus matrix of minors pi approximation day light sobolev spaces binary machine learning graphs manchester stickers approximation radio 4 tmip pizza cutting folding paper tennis inline code harriss spiral graph theory books estimation flexagons a gamut of games martin gardner royal institution


Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2021