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leap years

  • plural
    of leap year.
    leap year
    noun
    (in the Gregorian calendar) a year that contains 366 days, with February 29 as an additional day: occurring in years whose last two digits are evenly divisible by four, except for centenary years not divisible by 400.

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The calendar is approximately a quarter of a day short, which is why we have leap years, to bring the calendar back in line with the Earth's orbit.

From BBC Jun. 19, 2024

Now leap years divisible by 100, like the year 1900, are skipped unless they're also divisible by 400, like the year 2000, in which case they're observed.

From National Geographic Feb. 26, 2024

The next leap years are 2028, 2032 and 2036.

From Seattle Times Feb. 24, 2024

He added that the existing body of evidence strongly suggested that Aztecs, and their predecessors, never developed a correction system that incorporated leap years.

From New York Times Dec. 13, 2022

After all, they are watching the clockwork of the heavens—a clockwork that does not hiccup on leap years or reset itself every time humans decide to change the calendar.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

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