MonteCarlosimulationofthediffusingtemporallightcorrelationinamulti-layeredturbidmediumisconsidered.Astraightforwardformulaisintroducedtocalculateaccuratelyandefficientlytheautocorrelationfunctionatanydetectorposition.Thesimulationresultsareinanexcellentagreementwithananalyticalsolutionofthecorrelationdiffusionequation.