The Earth takes approximately 365.25 days to complete one orbit around the Sun. This period of time is known as a “tropical year” or a “solar year.” To account for the extra 0.25 days, we add an extra day to the calendar every four years, creating a leap year with 366 days. This adjustment is necessary to keep our calendars in sync with the Earth’s orbit around the Sun.
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- Post published:October 23, 2023
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