(info "(coreutils) Time conversion specifiers") is too hard to read through in a hurry.
Therefore a second section could be added: "quick reference".
And show how we generate it too!:
$ for i in {A..Z} {a..z}; do date "+$i: %$i"; done
A: Thursday
B: May
C: 20
D: 05/07/26
E: %E
F: 2026-05-07
G: 2026
