Geoscientists from the University of Vienna and ETH Zurich have found that Earth's days are becoming longer due to human-driven climate change, which has resulted in a 1.33 milliseconds per century increase in days being lengthened, a feat that has been largely unparalleled in millions of years. The researchers used fossilized marine organisms called foraminifera to study sea-level flux and calculate Earth's changing day length across nearly 4 million years. They developed a deep-learning algorithm to use their findings and a physics-informed diffusion model, a deep learning technique designed to compensate for uncertainties in paleoclimate data. This rapid increase in day length implies that modern climate change has been unprecedented at least since the late Pliocene, 3.6 million years ago. If this trend continues, the climate's influence on day length may surpass the influence of the Moon by century's end, marking a significant anthropological impact.