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Happy #LeapDay! Why do we have an extra day this February? Every 4 years we add an extra day to the calendar known as a Leap Day. UAB instructor in the Department of Physics, explains the science and history behind why we take part in this practice. “We know a calendar year as having 365 days; however, in reality, the Earth rotates around the sun in roughly 365.24 days,” Khan said. “That .24 is essentially just shy of a fourth of a day; but as years go by, those fourths of a day add up.”

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