It depends on the country. 1582 is Catholic Europe 1700 or 1701 is Protestant Eu... | Hacker News

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pasc1878 14 days ago | parent | context | favorite | on: Dates That Don't Exist (2015)

It depends on the country.

1582 is Catholic Europe

1700 or 1701 is Protestant Europe

1752 is Great Britain and its colonies which include USA

1918 is Russia

1923 Greece

https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_cale...

cjm42 14 days ago [–]

Which is one of the reasons that the Perl DateTime library just implements the proleptic Gregorian calendar (i.e. "let's just pretend we've always used Gregorian and the Julian calendar never existed")

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