Record update of `` the shortest day in observation history ’’, tendency for the rotation of the earth to speed up
地球で原子時計が発明されて以来、最も短い１日が観測されました
The shortest day since atomic clocks were invented on Earth
According to the International Earth Rotation and Reference System Project, an international organization responsible for global time management, the rotation time of the Earth on June 29 was 1.59 milliseconds shorter than a normal 24-hour day.
自転時間は地球が軸を中心に１回転するのにかかる時間のことで、秒に換算するとおよそ８万６４００秒です
The rotation time is the time it takes for the earth to rotate once around its axis, which is approximately 86,400 seconds.
これまでの最短記録は２０２０年７月１９日に観測され、通常より１．４７ミリ秒短かかりました
The previous shortest record was observed on July 19, 2020, taking 1.47 milliseconds less than usual.
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