Might time be multi-dimensional? In exploring this question, this paper uses a thought-experiment about dimensionality, H. G. Wells' ?The Plattner Story?. Plattner has his left and right sides transposed after a trip through a fourth spatial dimension, a change with independent empirical consequences. This example is then generalised to reversals of the directions of time and entropy. Finally, this thought-experiment is related to relativistic theories of time and the possibility of preserving causality in a temporally multi-dimensional framework.