“ISO 8601:2004 fixes a reference calendar date to the Gregorian calendar of 20 May 1875 as the date the Convention du Mètre (Metre Convention) was signed in Paris”
from
en.wikipedia.org/wiki/ISO_8601
this is probably what the post was refering to.
“ISO 8601:2004 fixes a reference calendar date to the Gregorian calendar of 20 May 1875 as the date the Convention du Mètre (Metre Convention) was signed in Paris”
from
en.wikipedia.org/wiki/ISO_8601
this is probably what the post was refering to.