This work suggests that the Time dimension is a significant variable at the moment of addressing the diversity of ways in which it is imagine and made political. On the basis of an ethnographic study, focusing on a context of particular militancy – a series of advocacy events – it is proposed to explore time domains of the political life of the militants of a party proclaimed to be left, and more precisely socialist and trotskist. The idea is to show how the production of a certain representation of temporary duration structures the partisan membership of the other (political), as well as militant practices within the political sphere. Through this ethnographic case, an attempt is made to approximate a possible interplay between time and politics, suggesting that a central element of the political struggle is the symbolic struggle for the representation of temporality.This work supggests that the dimension Time forms a significant variable at the moment of approaching the different ways we imagine and do politics. Based on an ethnographic investigation, and targeting upon a specific context of activism -a combination of party actions- the influence of time over political lives of the Activists of a self-sustaining wing, and more specifically socialist and Trotskyist, party is explored. The aim is to show the manner in which the production of a certain representation of temporary structures party membership in relation to Others (politicians) as well as the practices of Activists within the political arena. Through this ethnographic case study a possible interface between time and politics is approached, which means that a central element of political struggle is the symbolic fight for representation of timing.