What Is Date:Italy?

4 days ago

Ruby's Date constants like ITALY and ENGLAND represent Julian day numbers of calendar reform for specific regions.
The Gregorian calendar was introduced to fix inaccuracies in the Julian calendar, with adoption dates varying by country.
Julian day numbers provide a continuous count of days from an arbitrary epoch, used as a universal intermediary for converting between calendars.
In Ruby, Date::JULIAN and Date::GREGORIAN are set to infinity and negative infinity to model perpetual use of Julian or Gregorian calendars, respectively.
The Date class in Ruby uses a start parameter to define the Gregorian switchover date, affecting date calculations and validations.

Hasty Briefsbeta