In this paper I offer evidence to demonstrate the urgency of recovering time-space dialectics in the study of youth urban social movements, particularly in post-dictatorial neoliberal countries where economic and repressive trauma persistently remains in the population, regardless political ideology. The Chilean student movement, as most student movements, has systematically used traditional and innovative forms of mobilization. Nonetheless, most of them public space means repression, criminalization and segregation of all kinds. Therefore, after the triangulation of spa-tialized quantitative data, and qualitative data coming from active students and their significant adults, I argue that other substantial processes of youth resistance formation have occurred within the most intimate spaces of life, that is, their high schools and families, which remain highly underestimated as political spaces. Within these contested spaces, time means the conflicting encounter of different generations and their respective daily mobility experiences, interpretations of the recent past, and ideologies regarding social change.