Until 2020, the shortest day ever recorded was 1.05 milliseconds, which means the Earth completed its rotation in 1.05 milliseconds less than 24 hours. Today, July 22, the Earth is expected to spin a little faster than usual and is likely to skip about 1.34 milliseconds off the usual 24-hour day. This will make it the second-shortest day of 2025 so far after July 10 event during which Earth spun at 1.36 milliseconds shorter than a standard day.
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