August 5 may be shortest day ever: Earth spins faster; air pressure to blame
On August 5, 2025, Earth is expected to experience a slightly shorter day, approximately 1.34 milliseconds less than 24 hours. This phenomenon is attributed to changes within the Earth's core and atmospheric fluctuations. While imperceptible to humans, this acceleration could impact precise timekeeping systems like atomic clocks and GPS networks, requiring adjustments to maintain synchronization.
On August 5, 2025, Earth is expected to experience a slightly shorter day, approximately 1.34 milliseconds less than 24 hours. This phenomenon is attributed to changes within the Earth's core and atmospheric fluctuations. While imperceptible to humans, this acceleration could impact precise timekeeping systems like atomic clocks and GPS networks, requiring adjustments to maintain synchronization.
