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
12 August 2020YYMDD,DDMYY
22 August 2020YYMDD,DDMYY
32 January 2021YYMMD,YYMD,MDYY
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 "uncountable" in the box below (case sensitive):


Show me a random blog post

May 2020

A surprising fact about quadrilaterals
Interesting tautologies

Mar 2020

Log-scaled axes

Feb 2020

PhD thesis, chapter ∞
PhD thesis, chapter 5
PhD thesis, chapter 4
PhD thesis, chapter 3
Inverting a matrix
PhD thesis, chapter 2

Jan 2020

PhD thesis, chapter 1
Gaussian elimination
Matrix multiplication
Christmas (2019) is over
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼


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


Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2020