Relativistic Flow Principle

The rate of time in each time period should not be the same. Relativistic effects produced by changes in the earth and sun's velocity would result in minute time dilations. Motion and mass have effects on the speed of time. As a simple example, a ball bounced on a train takes longer to bounce to someone on the station platform than to someone on the train with it. Thus, each time period would have its own relative time rate, dependent on relativistic factors. This introduces a further complexity to the Time Error axiom. Time Gate apertures and Epoch destinations follow the natural flow of time in their era, but since the time rate of each time period is unique, there would be a discrepancy in the translation of both ends of a Gate into the future. For example, if Crono were to warp from 1000 AD to 400 years in the past, the time he spent in 600 AD is not necessarily the same as the time he was away from 1000 AD. Luckily, Crono could not return to 1000 AD before he left, so there is no worry about causality. For most time periods this discrepancy should be very small, perhaps on the order of seconds. However, 65 million BC might experience a significant time dilation.

From: Theory (Principles of Timelines and Dimensions)