The date February 22, 2022, for example, is a palindrome in the US and the UK when written as 22/2/22, or 2/22/22.
PALINDROME is something which reads the same forwards as it does backwards - for example, words like “civic”, “radar” and “kayak”.
Dates and numbers can also be a palindrome - here's everything you need to know.
A palindrome is when a word, date or phrase reads exactly the same forwards as it does backwards.
For example, the name “Hannah” reads the same when in reverse.
Sometimes, whole phrases can be a palindrome, such as: "Was it a rat I saw?"
The longest palindromic word in the Oxford English Dictionary is “tattarrattat”, which was written by James Joyce in his 1922 book Ulysses, and imitated the sound of someone knocking on a door.
Just like words, some dates are also palindromic.
This is because whether you write it as day/month/year or month/day/year, the numbers remain the same.
It's not often that dates are palindromic in the US and the UK due to the difference in order, but it also occurred on February 2, 2022, written as 2/2/22 in both nations.
Source:
https://www.thesun.ie/news/5054392/palindrome-meaning-date-day/