[en] Time-of-event counting is a method for measuring very low levels of short-lived radionuclides. This method records the time at which each counting event of interest occurs. It was desired to compare this counting method with more conventional grouped-data counting methods in which a scaler or pulse-height analyzer is operated in recycle mode with printout of the counting data after each cycle. However, since this would be very difficult to do experimentally with sufficient statistical accuracy, a method for simulation of the required low-level counting data was developed. The simulation program and its use for evaluation of the time-of-event counting method is discussed