In Belgium, social workers usually work standard hours that match up with macro-social time frames. They should, therefore, be in a position to link up their social lives in a harmonious way. However, combining work and family has both practical and subjective dimensions. This second dimension appears to be particularly at stake as concerns social workers because their professional activities imply the individual’s strong subjective commitment. The article’s objective is to analyze the specifics of their professional commitment (the “nature of the work” and the “forms of representation” associated with this particular professional practice) and to bring to light their implications as regards its linkage with the social time frame.