Jul 10, 2025
Earth Spins Faster: July 9, 2025 Sets Record for Shortest Day
On July 9, 2025, Earth rotated 1.4 milliseconds faster than the standard 24 hours—setting a new record
This tiny time shave made it the shortest day ever recorded in human history using precise atomic clocks
Scientists point to shifts in Earth’s inner core, ocean currents, and atmospheric winds as the culprits
Earth’s rotation isn’t fixed—it can speed up or slow down depending on various geophysical factors
A 1.4 millisecond difference may sound small, but it’s a big deal in the world of precision timekeeping
Faster spins could affect GPS, satellite communications, and even financial systems that rely on exact time
Despite this speed-up, long-term trends show Earth is actually slowing down gradually
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