Question

what is meant by time dilation in simple words?

Answer 1

Definition of time dilation. : a slowing of time in accordance with the theory of relativity that occurs in a system in motion relative to an outside observer and that becomes apparent especially as the speed of the system approaches that of light. — called also time dilatation

Answer 2

Definition of time dilation. : a slowing of time in accordance with the theory of relativity that occurs in a system in motion relative to an outside observer and that becomes apparent especially as the speed of the system approaches that of light. — called also time dilatation.