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 October 2020YYMMD
22 November 2020YYMMDD,DDMMYY
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 "vector" in the box below (case sensitive):


Show me a random blog post

Jul 2020

Happy ϕ+√3+3π-10 Approximation Day!

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 ▼


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


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