Jisho

×
Wikipedia definition
1. March 0​March 0 is an imaginary date. This formulation may be used in software such as Microsoft Excel to refer to the last day of February as a way of allowing for the fact that its length varies on leap years. It can also be used as a term for half-birthdays of people born on August 29, 30, or 31. "March 0" is sometimes used by astronomers as a synonym for the last day of February.
Read “March 0” on English Wikipedia
Read “3月0日” on Japanese Wikipedia
Read “March 0” on DBpedia

Discussions

to talk about this word.