Attosecond chronoscopy has revealed small but measurable delays in photoionization, characterized by the ejection of an electron on absorption of a single photon. Ionization-delay measurements in atomic targets provide a wealth of information about the timing of the photoelectric effect, resonances, electron correlations and transport. However, extending this approach to molecules presents challenges, such as identifying the correct ionization channels and the effect of the anisotropic molecular landscape on the measured delays. This talk will focus on some experimental measurements of ionization delays in molecules [1,2] and their theoretical interpretation using recently developed Classical Wigner Propagation (CWP) method. It will be shown how molecular ionization delays can be used to probe electron localization and molecular landscape.
 Vos et al, Science 360, 1326, (2018)  Biswas et al, Nature Physics 16, 778 (2020)