Experiences of commons economies have diversified steadily in recent decades: agriculture, cooperatives, water, fishing, vineyards. They have also been seen as initiatives that function as alternatives to the dominant forms of economic organisation. One of the main characteristics of the commons is that they operate - whether in principle or in practice - seeking autonomy from the state and the market. To what extent is this possible? We intend to answer this departing from the case of time banks, a more recent type of commons and less addressed as such. In answering, we intend to 1) explain the relational economic rationalities of time banks and 2) reflect on how commons deal with the state and the market and exist in spite of them. This happens in the community -beyond a territorial location - and the economy, both understood in a relational way. To illustrate this point and to place it in the context of the Global South, we will take the case of the Time Bank in the city of Talca, Maule, Chile, which has managed to establish operational relationships with other time banks, particularly in the context of the socio-health crisis.