B02 studies spin-orbit phenomena in single molecules directly in the time domain. In novel femtosecond spin-selective scanning tunnelling microscopy (STM) experiments, the field crest of a half-cycle THz pulse will bias the STM junction to transfer a single electron into a molecule or graphene nanostructure. The resulting ultrafast electronic dynamics will be probed directly in the time domain. The theoretical description will also proceed directly in the time domain using generalized master equation approaches tailored to driven STM setups. We will target propagation, beating, and relaxation dynamics of spin-orbit-coupled electrons on their intrinsic length and time scales.