Re:We now consider Moment.js to be a legacy project in maint...
by mj1586 on Tuesday September 15, 2020 @11:56AM
(#24482737)
Moment made up its tokens as it went along. Some match other languages, several do not.
The only real "standard" in this area is LDML tokens, which are part of CLDR. Luxon follows those.
Many UI libraries use that format so using different libraries with different notation will be harder to manage for me.