fictional date conventionally used to indicate the day before January 1 in the same year, i.e. December 31 in the previous year From Wikipedia, the free encyclopedia
January 0 does not exist in any calendars. It sometimes refers to December 31.
January 0 also refers to the day before January 1 in an annual ephemeris. It keeps the date in the year for which the ephemeris was published. It avoids any reference to the previous year, even though it is the same day as December 31 of the previous year.
In Microsoft Excel, the epoch of the 1900 date format is January 0, 1900.[1]
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.