The use of distortions in time or space is referred to as gravitational dilation.
Explanation:
Gravitational dilation of time is a consequence of Albert Einstein's theory of relativity and other related theories, which postulate that time passes at different rates in regions of different gravitational potential; The greater the local distortion of spacetime due to gravity, the more slowly time passes. This has been demonstrated by observing that atomic clocks at different altitudes and, therefore, at different gravitational potentials, show different times. The effects detected in these experiments are extremely small, with differences measured in nanoseconds.
