Gravitational time dilation

Gravitational time dilation is a phenomenon where time passes at different rates depending on the strength of a gravitational field. Near a massive object like a planet or star, gravity is stronger, and time moves slightly more slowly compared to areas with weaker gravity, such as farther away from the object. This effect is predicted by Einstein’s theory of general relativity and has been confirmed through experiments, like comparing highly precise clocks placed at different altitudes. Essentially, the closer you are to a massive body, the more slowly your clock runs relative to someone farther away.