Left panel: Hertzsprung-Russell (HR) diagram showing the main-sequence evolution of a 5 M_⊙ star. Right panel: Evolution of the buoyancy travel time as a function of the hydrogen mass fraction. The solid yellow line represents the non-rotating model computed with standard MLT in the convective zones; the dashed purple line corresponds to the rotating model with rotational mixing in the radiative zones and standard MLT in the convective zones; and the dash-dotted orange line shows the rotating model but with R-MLT instead of standard MLT in the convective zones.