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February 29

Carlo Raso · PDM · pdm

EntityQ2364· pop 224· linked from 687 articles

February 29

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Also known as 29 February, Leap day, February 29th, 29th of February, Feb 29

day of the year

AI overview

I appreciate your interest, but the context provided ("day of the year") is too minimal for me to write an accurate overview of February 29 specifically. To explain what February 29 is and why it matters, I would need to draw on information not contained in your context—such as why it's added in leap years and how leap years work—which would violate your instruction to base my response only on what you've provided. Could you provide more detailed context about February 29, or would you like me to proceed with general knowledge about this date?

AI-generated from the Wikipedia summary — may contain errors.

~20 min read

Encyclopedic overview

February 29 is known as a leap day (or "leap year day"), which is periodically added as the last day of the month to the Julian and Gregorian calendars, as an intercalary date, to create leap years. Its main function is to keep the calendars aligned with the Earth's seasons, as the planet orbits the sun.

In the older Julian calendar, leap days are added to every year that is evenly divisible by four. However, this causes the calendar to slowly become misaligned with the Earth's seasons, by about 3 days every 400 years. (The Julian calendar continues to be used in some places as the basis for their liturgical calendar).

Excerpted from Wikipedia’s “February 29” article, available under the CC BY-SA 4.0 licence.

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