Distribution of ΔAge intervals for galaxies within the MS, sampled in ΔAge bins 10 Myr wide. Top: Our measured distribution compared to that resulting from imposing noise as the separation from the SFMS at each age value (see Appendix B). Bottom: Ratio between the measured and noise-generated intervals for each bin. The peaks correspond to statistically overrepresented intervals in the measurements. Black bars show the error estimated assuming that the number of intervals measured follows a Poisson distribution. Dotted lines show the age intervals between age bins within the last 1 Gyr, and red shaded areas indicate the bins for which no combination of consecutive age bins is possible and therefore cannot be produced.