The year 2020 is definitely a very special one for all those who have a sense of symmetry – and this disposition was given to us by the evolution. Depending on the date format used, there are several palindrome days this year, i.e. dates that are symmetrical (or palindromic).

When written in the international ISO 8601 format YYYYMMDD, 2020-02-02 is the first palindromic date since 2011-11-02. In between there are 3014 days (more than 8 years). Of course, this is also a symmetrical date when written in the American format MMDDYYYY, i.e. 02/02/2020.

Moreover, that date is also palindromic in the long German date format DDMMYYYY, this is 02.02.2020. This format is also used in many other countries. It is the first such date since 21.02.2012 (2903 days ago). Please note: the symmetry is evaluated neglecting the delimiter symbol.