A day on Earth is now shorter than 24 hours. Here's why
Earth is rotating on its axis faster than it has in a half-century -- implying that each day on the planet is now shorter than 24 hours. Is this the first time that the planet is spinning faster or has it happened before
2021 TO BE SHORTER THAN 2020?
The year 2020 included 28 shortest days since 1960 and 2021 is predicted to be even shorter.
According to Time and Date, on average, with respect to the Sun, Earth rotates once every 86,400 seconds, which equals 24 hours, or one mean solar day.
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Earth is the third planet from the Sun and the only astronomical object known to harbor life. About 29% of Earth's surface is land consisting of continents and islands. The remaining 71% is covered with water, mostly by oceans but also by lakes, rivers and other fresh water, which together constitute the hydrosphere. Much of Earth's polar regions are covered in ice. Earth's outer layer is divided into several rigid tectonic plates that migrate across the surface over many millions of years. Earth's interior remains active with a solid iron inner core, a liquid outer core that generates Earth's magnetic field, and a convecting mantle that drives plate tectonics.
Earth
Astronomical symbol of Earth
The Blue Marble photograph of Earth, taken by the Apollo 17 mission. The Arabian peninsula, Africa and Madagascar lie in the upper half of the disc, whereas Antarctica is at the bottom.
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