Palindromic dates

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
122 February 2020MMDDYY
22 March 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 "width" in the box below (case sensitive):


Show me a random blog post

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 ▼


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


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