Predicted merger times of the test data against the true merger times. The colour corresponds to the number density from low (purple) to high (red). The red line indicates a one-to-one relation and the MSE for the normalised times is shown in the bottom right. Dark brown diamonds show the median true merger times and median predicted merger times in predicted merger time bins with widths of 200 Myr; x errors are the median absolute deviation of the true times in the bin and y errors are the median absolute deviation of the predicted times.