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Why does a leap year have 366 days?

Bhagya Subrayan, Purdue University, The Conversation
Posted 2/18/24

You may be used to hearing that it takes the Earth 365 days to make a full lap, but that journey actually lasts about 365 and a quarter days. Leap years help to keep the 12-month calendar matched up with Earth’s movement around the Sun.

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