Only four days each year are actually 24 hours long
To mark the passage of time, we assign 24 hours to each day, universally. Most of us are very used to 24 hours being in a day but aren’t used to the fact that this doesn’t correspond to a 360 degree rotation of the Earth. Most days, however, are either longer or shorter than 24 hours; only 4 days a year have precisely 24 hours to them. Credit : geralt/pixabay While that’s accurate for a day’s…
Only four days each year are precisely 24 hours long. Most days are either longer or shorter than 24 hours. This discrepancy occurs due to the Earth's axial tilt, orbital eccentricity, and variations in its speed as it revolves around the Sun. The Earth rotates approximately 360 degrees in 23 hours, 56 minutes, and 4.09 seconds, leaving a 0:03:55.91 gap.
A full rotation, known as a sidereal day, is different from a solar day, which is the time it takes for the Sun to return to the same position in the sky. The combination of these factors results in the analemma, a figure-8 pattern created by photographing the Sun at the same time throughout the year.
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