Time since the beginning of the main accretion phase for different stellar masses. The gray area marks the main accretion phase with a constant accretion rate for all masses. The red area shows the PMS phase in which the star contracts to the main sequence. Blue indicates the main sequence. The dashed gray line indicates 70% of the PMS phase, as in Fig. 5. The data points indicate the time it would have taken the stars to first accrete their mass and then contract to their current state.