The difference between the formation time of the first star more massive than a given mass threshold (T₁(> m_⋆)) and its expectation from fully stochastic (Poisson) IMF sampling (E[T₁(> m_⋆)]) in simulations of the M8R16 cloud. The solid curves and shaded regions show the median and 16th–84th percentile range for the 15 runs with different random seeds. The transparent curves show the results for each individual run.